Distributed portable 1394B bus detection equipment

Abstract

The invention relates to distributed portable 1394B bus detection equipment, and belongs to the technical field of airborne 1394B bus detection, the distributed portable 1394B bus detection equipment comprises a reinforced portable notebook computer and two same 1394B bus detection modules, the rear part of the reinforced portable notebook computer is provided with two module isolation cabins, and the two module isolation cabins are connected with the reinforced portable notebook computer. The two 1394B bus detection modules are respectively placed in the two module isolation cabins so as to move in or out of the module isolation cabins, a shielding door used for opening and closing the two module isolation cabins is hinged to the reinforced portable notebook computer, and the two 1394B bus detection modules are respectively used for being electrically connected with two network ports of the reinforced portable notebook computer. The two 1394B bus detection modules are used for being electrically connected with the two ends of a detected 1394B cable respectively. The 1394B bus cable detection device has the advantage that the 1394B bus cable laid on the machine can be conveniently detected.

Description

Technical Field

[0001] This application relates to the technical field of airborne 1394B bus detection, and particularly to a distributed portable 1394B bus detection device. Background Art

[0002] The 1394B bus, also known as FireWire, is an in-aircraft data bus that is widely used in the avionics systems, flight management systems, and electromechanical management systems of new-generation aircraft. Since the signal transmission quality of the 1394B bus affects the reliability and safety of the aircraft, in order to ensure the signal transmission quality of the network bus for each system, a 1394B bus detection device is required to analyze and detect the signal transmission quality of the network bus.

[0003] Currently, usually before the 1394B bus is applied, a 1394B bus detection device is used to detect it. Both ends of the 1394B cable to be tested must be connected to the detection device simultaneously to complete the detection. For the 1394B cables that have already been laid on the aircraft, due to the different layouts or physical positions of each network node on the aircraft and the different lengths of the cables between devices, conventional detection devices cannot be applied to the in-aircraft scenarios where the 1394B bus cables have already been laid. Summary of the Invention

[0004] To facilitate the detection of the 1394B bus cables that have already been laid on the aircraft, this application provides a distributed portable 1394B bus detection device.

[0005] The distributed portable 1394B bus detection device provided by this application adopts the following technical solutions: A distributed portable 1394B bus detection device includes a ruggedized portable notebook and two identical 1394B bus detection modules. Two module isolation compartments are provided at the rear of the ruggedized portable notebook. The two 1394B bus detection modules are respectively placed in the two module isolation compartments to be moved into or out of the module isolation compartments. A shielding door for opening and closing the two module isolation compartments is hinged on the ruggedized portable notebook. The two 1394B bus detection modules are respectively used for electrically connecting to the two network ports of the ruggedized portable notebook, and the two 1394B bus detection modules are respectively used for electrically connecting to both ends of the 1394B cable to be tested.

[0006] Preferably, the 1394B bus detection module is provided with a self-locking block, and a self-locking component for locking or unlocking the self-locking block is provided in each module isolation compartment.

[0007] Preferably, the self-locking assembly includes a self-locking seat disposed in the module isolation cabin, locking balls slidably disposed on opposite sides of the self-locking seat, and a first elastic pushing member disposed on the self-locking seat. The self-locking seat is located on the side of the module isolation cabin away from the shielding door. The self-locking seat has a locking groove for the self-locking block to move in or out. The sliding direction of the locking balls is perpendicular to the depth direction of the module isolation cabin. The two self-locking blocks are located on both sides of the locking groove. Arc-shaped grooves are formed on opposite sides of the self-locking block. The width of the self-locking block at the end away from the corresponding 1394B bus detection module is greater than the width of the self-locking block at the end close to the corresponding 1394B bus detection module. The two locking balls are respectively used to abut against the self-locking block, and the first elastic pushing member is used to push the locking balls to slide towards the direction close to the locking groove.

[0008] Preferably, the first elastic pushing member includes a first spring for pushing the locking ball to slide towards the direction close to the locking groove. The first springs correspond to the locking balls one by one. One end of the first spring is disposed on the self-locking seat, and the other end is disposed on the corresponding locking ball.

[0009] Preferably, the side wall of the module isolation cabin is covered with a shock-absorbing and buffering layer, which is used to abut against the outer wall of the 1394B bus detection module.

[0010] Preferably, the 1394B bus detection module has a plurality of communication ports. The communication ports of the 1394B bus detection module are located on the side of the 1394B bus detection module away from the corresponding self-locking block. The 1394B bus detection module has an indicator light for displaying the connection status of the communication ports.

[0011] Preferably, the 1394B bus detection module is provided with a handle, and the handle is located on the side of the 1394B bus detection module close to the communication port.

[0012] Preferably, a lithium battery is disposed in the ruggedized portable notebook, and the lithium battery is electrically connected to the ruggedized portable notebook.

[0013] Preferably, a locking and unlocking device is disposed on the shielding door. The locking and unlocking device includes a lock plate disposed on the shielding door, a lock tongue slidably disposed on the lock plate, and a second elastic pushing member disposed on the shielding door. The sliding direction of the lock tongue is perpendicular to the hinge axis of the shielding door. One side of the lock tongue away from the hinge axis of the shielding door is an inclined surface, and the distance from the inclined surface to the side of the shielding door away from the module isolation cabin decreases along the direction away from the hinge axis of the shielding door. The inclined surface is used to slidably abut against the opening edge of the module isolation cabin of the ruggedized portable notebook. A locking groove for plugging and matching with the lock tongue is formed on the inner wall of the module isolation cabin, and the second elastic pushing member is used to push the lock tongue to slide towards the side away from the hinge axis of the shielding door.

[0014] Preferably, the second elastic pushing member includes a second spring for pushing the locking tongue to slide away from the hinge axis of the shielding door. One end of the second spring is arranged on the shielding door, and the other end is arranged on the locking tongue. When the second spring is in a natural state, the inclined surface of the locking tongue extends out of the shielding door.

[0015] In summary, the present application includes the following beneficial technical effects: During use, open the reinforced portable notebook and the shielding door, then move the two 1394B bus detection modules out of the module isolation compartment. Then, according to the test environment, place the two 1394B bus detection modules at both ends of the 1394B cable to be tested laid on the machine and connect them to the corresponding ends of the cable to be tested. Then, connect each 1394B bus detection module to the network port of the reinforced portable notebook through a network cable. After the system is powered on, the 1394B bus detection module can detect the connection status of the test units in the network and complete the 1394B network matching. At the same time, the test progress and status can be viewed on the reinforced portable notebook, so as to realize the detection of the 1394B bus cable laid on the machine, solve the problem that it is inconvenient to detect the 1394B bus cable laid on the machine, and can not only be applicable to the detection before the application of the 1394B bus, but also be applicable to the detection of the 1394B bus laid on the machine. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application.

[0017] Figure 2 is the partial structural sectional view of Embodiment 1 of the present application, mainly used to show the position of the self-locking seat.

[0018] Figure 3 is the partial structural sectional view of the self-locking seat in Embodiment 1 of the present application.

[0019] Figure 4 is the overall structural sectional view of Embodiment 1 of the present application.

[0020] Figure 5 is Figure 4 the enlarged view of part A in

[0021] Figure 6 is the partial structural schematic diagram of Embodiment 2 of the present application.

[0022] Figure 7 is the overall structural schematic diagram of the side plate in Embodiment 2 of the present application.

[0023] Description of the reference numerals: 2, reinforced portable notebook; 3, 1394B bus detection module; 4, module isolation compartment; 5, shielding door; 6, self-locking block; 7, self-locking seat; 8, locking ball; 9, locking groove; 10, arc groove; 11, first spring; 12, shock-absorbing buffer layer; 13, handle; 14, lock plate; 15, lock tongue; 16, locking slot; 17, second spring; 18, connecting plate; 19, mounting groove; 20, sliding slot; 21, operation frame; 22, notch; 23, side plate; 24, telescopic rod; 25, third spring; 26, abutting group; 261, abutting block; 27, adjustment gap. Detailed implementation manners

[0024] The following is further detailed description of the present application in conjunction with Figures 1-7 to this application.

[0025] Embodiment 1: The embodiment of the present application discloses a distributed portable 1394B bus detection device. Referring to Figure 1 , the distributed portable 1394B bus detection device includes a reinforced portable notebook 2 and two identical 1394B bus detection modules 3. The cross-section of the reinforced portable notebook 2 is rectangular. Two module isolation compartments 4 are provided at the rear of the reinforced portable notebook 2. The depth direction of the module isolation compartment 4 is parallel to the width direction of the reinforced portable notebook 2. The two identical 1394B bus detection modules 3 are respectively placed in the two module isolation compartments 4. Among them, the 1394B bus detection module 3 and the module isolation compartment 4 can be installed arbitrarily. Since the 1394B bus detection module 3 is placed in the module isolation compartment 4, it can be moved into or out of the module isolation compartment 4. A shielding door 5 for opening and closing the two module isolation compartments 4 is hinged on the reinforced portable notebook 2. The hinge axis of the shielding door 5 is parallel to the length direction of the reinforced portable notebook 2.

[0026] Referring to Figure 1 , the 1394B bus detection module 3 has a plurality of communication ports (not marked in the figure). The side of the 1394B bus detection module 3 where the plurality of communication ports are located is the front panel of the 1394B bus detection module 3. When the 1394B bus detection module 3 is placed in the module isolation compartment 4, the communication ports on the 1394B bus detection module 3 are located on the side of the 1394B bus detection module 3 close to the shielding door 5, which is convenient for the use of the 1394B bus detection module 3; the two 1394B bus detection modules 3 are respectively used for electrically connecting to the two network ports of the reinforced portable notebook 2, and the two 1394B bus detection modules 3 are respectively used for electrically connecting to both ends of the 1394B cable to be measured.

[0027] When in use, the reinforced portable notebook 2 and the shielding door 5 are opened, and then the two 1394B bus detection modules 3 are moved out of the module isolation cabin 4, and then the two 1394B bus detection modules 3 are respectively placed at the two ends of the 1394B tested cable laid on the aircraft according to the test environment and connected to the corresponding ends of the tested cable, so that the two 1394B bus detection modules 3 can be distributed according to the length and position of the tested cable; then each 1394B bus detection module 3 is connected to the network port of the reinforced portable notebook 2 through a network cable, and after the system is powered on, the 1394B bus detection module 3 can detect the connection status of the test unit in the network and complete the 1394B network matching, and at the same time, the test progress and status can be checked on the reinforced portable notebook 2, so as to realize the detection of the 1394B bus cable laid on the aircraft, solve the problem that the 1394B bus cable laid on the aircraft is inconvenient to detect, and can be suitable for not only the detection before the 1394B bus application, but also the complex 1394B bus detection laid on the aircraft.

[0028] Reference Figure 2 and Figure 3 In order to prevent the 1394B bus detection module 3 from being affected by vibration during the movement of the detection device, a connecting plate 18 is fixed to the 1394B bus detection module 3 by screws or bolts. The connecting plate 18 is located on the side of the 1394B bus detection module 3 away from the communication port. A self-locking block 6 is integrally formed on the side of the connecting plate 18 away from the 1394B bus detection module 3. The self-locking block 6 extends in a direction away from the connecting plate 18. A self-locking component for locking or releasing the self-locking block 6 is provided in the module isolation cabin 4. In the example of the present application, in order to ensure the locking effect of the 1394B bus detection module 3, three connecting plates 18 are provided on each 1394B bus detection module 3, and the length direction of the connecting plate 18 located in the middle position is set in the horizontal direction, and the length direction of the connecting plates 18 located on both sides is set in the vertical direction; in other embodiments, the number and length direction of the connecting plates 18 can be set as needed.

[0029] Reference Figure 2 and Figure 3, for facilitating the locking or unlocking of the self-locking block 6, the self-locking assembly includes a self-locking seat 7, a locking ball 8 and a first elastic pushing member. The self-locking seats 7 correspond to the self-locking blocks 6 one by one. The self-locking seats 7 are fixedly installed on the side of the module isolation cabin 4 away from the shielding door 5 by bolts or screws. The self-locking seats 7 are provided with locking grooves 9 for the corresponding self-locking blocks 6 to move in or out. Installation grooves 19 are formed on the opposite sides of the locking groove 9. Each self-locking seat 7 corresponds to two locking balls 8, and the locking balls 8 correspond to the installation grooves 19 one by one. The locking balls 8 are slidably inserted into the corresponding installation grooves 19. The two locking balls 8 are located on both sides of the corresponding locking groove 9. The sliding direction of the locking balls 8 is perpendicular to the depth direction of the module isolation cabin 4. Specifically, the sliding direction of the locking balls 8 is parallel to the length direction of the connecting plate 18 on the corresponding self-locking block 6. Arc-shaped grooves 10 are formed on the opposite sides of the self-locking block 6. The arrangement direction of the two arc-shaped grooves 10 is parallel to the length direction of the corresponding connecting plate 18. The arc-shaped grooves 10 are located at one end of the self-locking block 6 close to the connecting plate 18. The width of the self-locking block 6 at the end away from the corresponding 1394B bus detection module 3 is greater than the width of the self-locking block 6 at the end close to the corresponding 1394B bus detection module 3. The width of the self-locking block 6 refers to the length size of the self-locking block 6 in the direction parallel to the length of the corresponding connecting plate 18. The two locking balls 8 are respectively used to abut against the opposite sides of the self-locking block 6. The end of the self-locking block 6 away from the corresponding connecting plate 18 is designed as a rounded corner to facilitate relative sliding with the corresponding two locking balls 8. The first elastic pushing member is arranged on the installation groove 19 and is used to push the locking ball 8 to slide towards the direction close to the locking groove 9.

[0030] Refer to Figure 2 and Figure 3 , to facilitate the pushing of the two locking balls 8 towards each other, the first elastic pushing member includes a first spring 11. The first springs 11 correspond to the locking balls 8 one by one. The first springs 11 are located in the corresponding installation grooves 19. One end of the first spring 11 is fixed to the bottom wall of the corresponding installation groove 19, and the other end is fixed to the corresponding locking ball 8. When the first spring 11 is in the natural state, the distance between the two locking balls 8 on the self-locking seat 7 is smaller than the width size of the end of the self-locking block 6 away from the corresponding connecting plate 18.

[0031] When the 1394B bus detection module 3 is inserted into the module isolation compartment 4, the self-locking block 6 on the 1394B bus detection module 3 aligns with the locking groove 9 of the corresponding self-locking seat 7. As the 1394B bus detection module 3 continues to move, the rounded end of the self-locking block 6 away from the connecting plate 18 slides relative to the corresponding two locking balls 8, and pushes the locking balls 8 to move towards the direction close to the corresponding installation groove 19, compressing the first spring 11. The 1394B bus detection module 3 continues to move, so that the end of the self-locking block 6 abuts against the bottom wall of the locking groove. The width of the abutting position between the self-locking block 6 and the locking balls 8 decreases, and the abutting force on the locking balls 8 decreases. The locking balls 8 abut against the position of the arc-shaped groove 10 of the self-locking block 6 under the action of the first spring 11, thereby locking the 1394B bus detection module 3, making the 1394B bus detection module 3 not easily affected by vibration during the movement of the detection device, and can well protect the 1394B bus detection module 3 from external force collision after the shielding door 5 is closed, fully ensuring the detection reliability of the precision module.

[0032] When it is necessary to take out the 1394B bus detection module 3, apply force to pull the 1394B bus detection module 3 to move away from the module isolation compartment 4, so that the arc surface on the self-locking block 6 slides relative to the corresponding locking balls 8, and pushes the locking balls 8 into the corresponding installation grooves 19. As the 1394B bus detection module 3 continues to move, the self-locking block 6 disengages from the corresponding two locking balls 8 to achieve unlocking. Then, the two locking balls 8 move closer to each other and reset under the action of the corresponding first spring 11 for convenient use next time.

[0033] Refer to Figure 4 As shown in, the side wall of the module isolation compartment 4 is covered with a shock-absorbing and buffering layer 12, and the shock-absorbing and buffering layer 12 is used to abut against the 1394B bus detection module 3. In the embodiment of the present application, to improve the protection effect on the 1394B bus detection module 3, the top wall and the bottom wall of the module isolation compartment 4 are also covered with the shock-absorbing and buffering layer 12. Among them, the shock-absorbing and buffering layer 12 can be made of one of a rubber layer, a silica gel layer, a plastic layer, etc., which is not limited here. The setting of the shock-absorbing and buffering layer 12 further reduces the influence of vibration on the 1394B bus detection module 3 during the movement of the detection device, effectively ensuring the detection reliability of the precision module.

[0034] Refer to Figure 1 As shown in, the communication port of the 1394B bus detection module 3 uses a Lemo connector, which has good reliability and durability. The 1394B bus detection module 3 is provided with an indicator light for displaying the connection status of the communication port, so as to facilitate the user to view the connection status of each communication port.

[0035] Refer to Figure 1, the 1394B bus detection module 3 is fixed with handles 13. The handles 13 are located on the side of the 1394B bus detection module 3 close to the communication port. Each 1394B bus detection module 3 corresponds to two handles 13. Specifically, multiple communication ports on the 1394B bus detection module 3 are located between the corresponding two handles 13. The setting of the handles 13 facilitates the movement of the 1394B bus detection module 3, especially facilitating the pulling out of the 1394B bus detection module 3 from the module isolation compartment 4.

[0036] Refer to Figure 1 , a lithium battery is provided inside the rugged portable notebook 2, and the lithium battery is electrically connected to the rugged portable notebook 2. Power supply through the lithium battery helps to avoid the situation that the detection data cannot be saved in time and the detection cannot be carried out normally due to power failure or accidental power off in the on-board detection environment.

[0037] Refer to Figure 4 and Figure 5 , a locking and unlocking device is embedded on the shielding door 5. The locking and unlocking device includes a lock plate 14, a lock tongue 15 and a second elastic pushing member. The lock plate 14 is fixedly embedded on the side of the shielding door 5 close to the module isolation compartment 4 by screws. The lock plate 14 is located on the side of the shielding door 5 away from its hinge axis. A sliding groove 20 is formed between the side of the lock plate 14 away from the module isolation compartment 4 and the shielding door 5. The lock tongue 15 is slidably arranged in the sliding groove 20, and the sliding direction of the lock tongue 15 is perpendicular to the hinge axis of the shielding door 5.

[0038] Refer to Figure 4 and Figure 5 , an operation frame 21 is integrally formed on the side of the lock tongue 15 away from the lock plate 14. The operation frame 21 extends to the side of the shielding door 5 away from the module isolation compartment 4. A notch 22 for sliding the operation frame 21 is opened on the side of the shielding door 5 away from the module isolation compartment 4. The side of the lock tongue 15 away from the hinge axis of the shielding door 5 is a slope, and the distance from the slope to the side of the shielding door 5 away from the module isolation compartment 4 decreases along the direction away from the hinge axis of the shielding door 5. The slope is used for sliding contact with the opening edge of the module isolation compartment 4 on the rugged portable notebook 2. A locking groove 16 inserted and matched with the lock tongue 15 is opened on the top wall of the module isolation compartment 4. The second elastic pushing member is arranged in the sliding groove 20, and the second elastic pushing member is used to push the lock tongue 15 to slide in the direction away from the hinge axis of the shielding door 5. In the embodiment of the present application, two locking and unlocking devices on the shielding door 5 are symmetrically arranged, and the notches 22 correspond to the locking and unlocking devices one by one, and the locking grooves 16 correspond to the locking and unlocking devices one by one; in other embodiments, the number of the locking and unlocking devices can be set according to needs.

[0039] Refer to Figure 4 and Figure 5, To facilitate the sliding of the locking tongue 15 in a direction away from the hinge axis of the shielding door 5, the second elastic pushing member includes a second spring 17. The second spring 17 is located in the corresponding sliding groove 20. The extending direction of the second spring 17 is parallel to the sliding direction of the corresponding locking tongue 15. One end of the second spring 17 is fixed on the inner wall of the corresponding sliding groove 20, and the other end is fixed on the corresponding locking tongue 15. When the second spring 17 is in its natural state, the inclined surface of the locking tongue 15 extends out of the shielding door 5, and the side of the operation frame 21 away from the hinge axis of the shielding door 5 abuts against the side of the notch 22 away from the hinge axis of the shielding door 5.

[0040] When it is necessary to close the shielding door 5, rotate the shielding door 5 in a direction close to the module isolation cabin 4. Then, the inclined surface of the locking tongue 15 on the shielding door 5 abuts against the edge of the module isolation cabin 4 on the reinforced portable notebook 2. As the shielding door 5 continues to rotate, the edge of the module isolation cabin 4 and the inclined surface of the locking tongue 15 slide relative to each other, squeezing the locking tongue 15 to slide in a direction close to the hinge axis of the shielding door 5, compressing the second spring 17. When the shielding door 5 drives the locking tongue 15 to rotate until the locking tongue 15 aligns with the corresponding locking groove 16, the compressed second spring 17 pushes the locking tongue 15 to slide in a direction away from the hinge axis of the shielding door 5, causing the locking tongue 15 to move into the corresponding locking groove 16. At this time, the side of the locking tongue 15 away from the module isolation cabin 4 abuts against the inner wall of the locking groove 16, realizing the locking of the shielding door 5.

[0041] When it is necessary to open the shielding door 5, slide the operation frame 21 towards the side close to the hinge axis of the shielding door 5, so that the operation frame 21 drives the locking tongue 15 to disengage from the corresponding locking groove 16. Then, the shielding door 5 can be rotated in a direction away from the module isolation cabin 4 to open the module isolation cabin 4.

[0042] The implementation principle of Embodiment 1 of this application is as follows: During use, open the reinforced portable notebook 2, then slide the operation frame 21 towards the side close to the hinge axis of the shielding door 5, so that the operation frame 21 drives the locking tongue 15 to disengage from the corresponding locking groove 16. Then, rotate the shielding door 5 in a direction away from the module isolation cabin 4 to open the module isolation cabin 4. Then, pull the handle 13 of the 1394B bus detection module 3, so that the 1394B bus detection module 3 moves in a direction away from the module isolation cabin 4, causing the self-locking block 6 and the corresponding two locking balls 8 to slide relative to each other, and pushing the locking balls 8 into the corresponding installation grooves 19. As the 1394B bus detection module 3 continues to move, the self-locking block 6 disengages from the corresponding two locking balls 8, realizing unlocking. Then, the two locking balls 8 approach each other under the action of the corresponding first spring 11 to reset.

[0043] Then, according to the test environment, the two 1394B bus detection modules 3 are respectively placed at both ends of the 1394B cable to be tested laid on the machine and connected to the corresponding ends of the cable to be tested. Then, each 1394B bus detection module 3 is connected to the network port of the rugged portable notebook 2 through a network cable. After the system is powered on, the 1394B bus detection module 3 can detect the connection status of the test units in the network and complete the 1394B network matching. At the same time, the test progress and status can be viewed on the rugged portable notebook 2, so as to realize the detection of the 1394B bus cable laid on the machine, solve the problem that it is inconvenient to detect the 1394B bus cable laid on the machine, and can not only be applicable to the detection before the application of the 1394B bus, but also be applicable to the detection of the complex 1394B bus laid on the machine.

[0044] After use, disconnect the network cable connection on the 1394B bus detection module 3, and then insert the 1394B bus detection module 3 into the module isolation cabin 4. The self-locking block 6 on the 1394B bus detection module 3 is aligned with the locking groove 9 of the corresponding self-locking seat 7. As the 1394B bus detection module 3 continues to move in, the rounded end of the self-locking block 6 slides relative to the corresponding two locking balls 8, pushing the locking balls 8 to move towards the direction close to the corresponding installation groove 19 until the self-locking block 6 abuts against the bottom wall of the locking groove 9, and the two locking balls 8 clamp the corresponding self-locking block 6 to realize the locking of the 1394B bus detection module 3. Finally, close the shielding door 5 so that the locking tongue 15 is inserted and matched with the corresponding locking groove 16. During the movement of the detection device, the 1394B bus detection module 3 is not easily affected by vibration, which can fully ensure the detection reliability of the precision module.

[0045] Embodiment 2: Refer to Figure 4 and Figure 6 In this application embodiment, the difference from Embodiment 1 is that the distance between the shock-absorbing and buffering layers 12 on both inner walls of the module isolation cabin 4 is greater than the width of the 1394B bus detection module 3. When the 1394B bus detection module 3 is located in the module isolation cabin 4, the width direction is parallel to the length direction of the rugged portable notebook 2. On both sides of the two module isolation cabins 4, a side plate 23 is slidably arranged on the side far away from each other, and the sliding direction of the side plate 23 is parallel to the length direction of the rugged portable notebook 2.

[0046] Refer to Figure 6 and Figure 7, on the sides of the two side plates 23 facing away from each other, a plurality of telescopic rods 24 are fixed. The telescopic direction of the telescopic rods 24 is parallel to the sliding direction of the side plates 23. One end of the telescopic rod 24 away from the side plate 23 is fixed on the shock-absorbing buffer layer 12 on the side wall of the corresponding module isolation chamber 4. The telescopic rods 24 are provided to guide the sliding of the side plates 23. An adjustment gap 27 is formed between the side of the side plate 23 close to the corresponding telescopic rod 24 and the inner wall of the corresponding module isolation chamber 4 close to the telescopic rod 24. A third spring 25 is sleeved on each telescopic rod 24. One end of the third spring 25 is fixed on the corresponding side plate 23, and the other end is fixed on the shock-absorbing buffer layer 12 on the side of the corresponding module isolation chamber 4 close to the telescopic rod 24. The third spring 25 is used to maintain the position of the side plate 23.

[0047] Refer to Figure 4 , Figure 6 and Figure 7 , an elastic cushion layer (not marked in the figure) is covered on the side of the side plate 23 away from the corresponding telescopic rod 24. The cushion layer can be a rubber layer or a silica gel layer. The cushion layer is used to abut against the 1394B bus detection module 3. When the third spring 25 is in the natural state, the distance from the side of the cushion layer away from the corresponding telescopic rod 24 to the shock-absorbing buffer layer 12 on the side of the corresponding module isolation chamber 4 away from the telescopic rod 24 is greater than the width of the 1394B bus detection module 3, so that when the 1394B bus detection module 3 is inserted into the corresponding module isolation chamber 4, the resistance is small and the speed is fast.

[0048] Refer to Figure 6 and Figure 7 , an abutting group 26 for adjusting the position of the side plate 23 is provided on the shielding door 5. The abutting group 26 corresponds to the side plate 23 one by one. The abutting group 26 includes a plurality of abutting blocks 261 fixed on the side of the shielding door 5 close to the module isolation chamber 4. The plurality of abutting blocks 261 in each abutting group 26 are aligned with the adjustment gap 27 of the corresponding side plate 23. The arrangement direction of the plurality of abutting blocks 261 in each abutting group 26 is perpendicular to the hinge axis of the shielding door 5. The abutting block 261 is used to push the side plate 23 to slide in the direction away from the corresponding telescopic rod 24.

[0049] Refer to Figure 6 and Figure 7, specifically, the cross-section of the abutting block 261 is a right triangle. The side of the abutting block 261 close to the corresponding side plate 23 is an inclined surface. The length of the abutting block 261 in the hinge axis direction of the shielding door 5 decreases towards the direction close to the module isolation cabin 4. The length of the end of the abutting block 261 close to the module isolation cabin 4 in the hinge axis direction of the shielding door 5 is less than the width of the adjustment gap 27 when the third spring 25 is in the natural state. The length of the end of the abutting block 261 close to the shielding door 5 in the hinge axis direction of the shielding door 5 is greater than the width of the adjustment gap 27 when the third spring 25 is in the natural state. The abutting block 261 is used to extend into the corresponding adjustment gap 27. When the shielding door 5 is in the closed state, the side plate 23 abuts against the hypotenuse of the corresponding abutting block 261, and the cushion layer on the side plate 23 abuts against the 1394B bus detection module 3.

[0050] The implementation principle of Embodiment 2 of this application is as follows: When the 1394B bus detection module 3 is inserted into the corresponding module isolation cabin 4, the third spring 25 is in the natural state. At this time, the distance between the side of the cushion layer away from the corresponding telescopic rod 24 and the shock absorption and buffer layer 12 on the side of the corresponding module isolation cabin 4 away from the telescopic rod 24 is greater than the width of the 1394B bus detection module 3. Move the 1394B bus detection module 3 along the shock absorption and buffer layer 12 on the side of the module isolation cabin 4 away from the side plate 23. The 1394B bus detection module 3 will not abut against the cushion layer, so that the moving resistance of the 1394B bus detection module 3 is small, and the 1394B bus detection module 3 can be quickly placed in place. After placing the two 1394B bus detection modules 3 in the required positions, rotate the shielding door 5 towards the direction close to the module isolation cabin 4. The tip of the abutting block 261 on the shielding door 5 first extends into the corresponding adjustment gap 27. As the shielding door 5 continues to rotate, the abutting block 261 continues to extend into the adjustment gap 27, and the hypotenuse of the abutting block 261 will abut against the side plate 23 and move towards the direction close to the corresponding 1394B bus detection module 3 until the shielding door 5 is completely closed. The cushion layer on the side plate 23 abuts against the corresponding 1394B bus detection module 3, thereby restricting the position of the 1394B bus detection module 3, so that the 1394B bus detection module 3 is not easily affected by vibration during the movement of the detection device.

[0051] When the 1394B bus detection module 3 needs to be used, rotate the shielding door 5 towards the direction away from the module isolation cabin 4 to make the abutting block 261 gradually extend out of the corresponding adjustment gap 27. The abutting force of the hypotenuse of the abutting block 261 on the side plate 23 decreases. Under the pulling of the third spring 25, the side plate 23 resets, so that the cushion layer is separated from the corresponding 1394B bus detection module 3, thus facilitating the pulling out of the 1394B bus detection module 3 from the module isolation cabin 4.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A distributed portable 1394B bus detection device, characterized in that: The invention comprises a reinforced portable notebook (2) and two identical 1394B bus detection modules (3), wherein two module isolation compartments (4) are provided at the rear of the reinforced portable notebook (2), the two 1394B bus detection modules (3) are respectively placed in the two module isolation compartments (4) to be moved into or out of the module isolation compartments (4), the reinforced portable notebook (2) is hinged with a shielding door (5) for opening and closing the two module isolation compartments (4), the two 1394B bus detection modules (3) are respectively used to be electrically connected to two network ports of the reinforced portable notebook (2), and the two 1394B bus detection modules (3) are respectively used to be electrically connected to two ends of a 1394B cable to be tested.

2. A distributed portable 1394B bus detection device according to claim 1, characterized in that: The 1394B bus detection module (3) is provided with a self-locking block (6), and each module isolation compartment (4) is provided with a self-locking component for locking or releasing the self-locking block (6).

3. A distributed portable 1394B bus detection device according to claim 2, characterized in that: The self-locking assembly comprises a self-locking seat (7) arranged in the module isolation cabin (4), locking balls (8) slidably arranged on opposite sides of the self-locking seat (7), and a first elastic pusher arranged on the self-locking seat (7); the self-locking seat (7) is located on a side of the module isolation cabin (4) away from the shielding door (5); the self-locking seat (7) has a locking groove (9) for the self-locking block (6) to move in or out; the sliding direction of the locking ball (8) is perpendicular to the depth direction of the module isolation cabin (4); the two The self-locking block (6) is located on both sides of the locking groove (9), and arc grooves (10) are provided on opposite sides of the self-locking block (6). The width of the end of the self-locking block (6) away from the corresponding 1394B bus detection module (3) is greater than the width of the end of the self-locking block (6) close to the corresponding 1394B bus detection module (3). The two locking balls (8) are respectively used to press against the self-locking block (6), and the first elastic pushing member is used to push the locking ball (8) to slide in a direction close to the locking groove (9).

4. A distributed portable 1394B bus detection device according to claim 3, characterized in that: The first elastic pusher comprises a first spring (11) for pushing the locking ball (8) to slide in a direction close to the locking groove (9); the first spring (11) corresponds to the locking ball (8) one by one; one end of the first spring (11) is arranged on the self-locking seat (7), and the other end is arranged on the corresponding locking ball (8).

5. A distributed portable 1394B bus detection device according to claim 1, characterized in that: The side wall of the module isolation cabin (4) is covered with a shock absorbing buffer layer (12), and the shock absorbing buffer layer (12) is used to abut against the outer wall of the 1394B bus detection module (3).

6. A distributed portable 1394B bus detection device according to claim 2, characterized in that: The 1394B bus detection module (3) has a plurality of communication ports, wherein the communication ports of the 1394B bus detection module (3) are located at a side of the 1394B bus detection module (3) away from the corresponding self-locking block (6), and the 1394B bus detection module (3) has an indicator light for displaying the connection status of the communication port.

7. A distributed portable 1394B bus detection device according to claim 6, characterized in that: The 1394B bus detection module (3) is provided with a handle (13), and the handle (13) is located on a side of the 1394B bus detection module (3) close to the communication port.

8. A distributed portable 1394B bus detection device according to claim 1, characterized in that: A lithium battery is arranged in the reinforced portable notebook (2), and the lithium battery is electrically connected to the reinforced portable notebook (2).

9. A distributed portable 1394B bus detection device according to any one of claims 1 to 8, characterized in that: The shielding door (5) is provided with an opening and closing lock, the opening and closing lock comprising a lock plate (14) arranged on the shielding door (5), a lock tongue (15) slidably arranged on the lock plate (14) and a second elastic pusher arranged on the shielding door (5); the sliding direction of the lock tongue (15) is perpendicular to the hinge axis of the shielding door (5); the side of the lock tongue (15) away from the hinge axis of the shielding door (5) is an inclined surface; the distance from the inclined surface to the side of the shielding door (5) away from the module isolation cabin (4) decreases along the direction away from the hinge axis of the shielding door (5); the inclined surface is used for slidingly abutting against the opening edge of the module isolation cabin (4) of the reinforced portable notebook (2); the inner wall of the module isolation cabin (4) is provided with a locking groove (16) pluggable with the lock tongue (15); the second elastic pusher is used for pushing the lock tongue (15) to slide toward the side away from the hinge axis of the shielding door (5).

10. A distributed portable 1394B bus detection device according to claim 9, characterized in that: The second elastic pusher comprises a second spring (17) for pushing the lock tongue (15) to slide in a direction away from the hinge axis of the shielding door (5); one end of the second spring (17) is arranged on the shielding door (5), and the other end is arranged on the lock tongue (15); when the second spring (17) is in a natural state, the inclined surface of the lock tongue (15) extends out of the shielding door (5).

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