CN118144715B

CN118144715B - Vehicle chassis structure and vehicle

Info

Publication number: CN118144715B
Application number: CN202410585285.3A
Authority: CN
Inventors: 王德平; 朱一男; 石家欣; 白石; 吴江; 温德新; 高帅鹏; 廖俊龙; 吴军亭; 吕思呈
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2024-05-13
Filing date: 2024-05-13
Publication date: 2024-08-06
Anticipated expiration: 2044-05-13
Also published as: CN118144715A

Abstract

The invention relates to the technical field of special chassis of vehicles, and discloses a chassis structure of a vehicle and the vehicle, which comprise a chassis, a threshold longitudinal beam, a fixed armor, a middle supporting device, a side supporting device, a hanging armor and a hanging armor fixing device; the left end and the right end of the chassis are welded and fixed with the threshold longitudinal beam, the fixed armor is arranged below the chassis, the left end and the right end of the fixed armor are welded and fixed with the threshold longitudinal beam, and the middle part of the lower surface of the fixed armor is fixed with a middle supporting device; side end supporting devices are arranged on two sides of the lower surface of the fixed armor; the adjacent side walls of the hanging armors are contacted and connected, the upper end faces of the butted hanging armors are respectively fixed with the lower ends of the middle supporting devices, and the two side ends of the butted hanging armors are respectively connected with the lower ends of the side supporting devices; the two side ends of the hanging armor are clamped with hanging armor fixing devices which are fixed with the threshold longitudinal beams; the two ends of the vehicle bottom hanging armor can be lifted by the shock wave and incline to be V-shaped, so as to actively disperse the shock wave of the explosive.

Description

Vehicle chassis structure and vehicle

Technical Field

The invention relates to the technical field of special chassis of vehicles, in particular to a vehicle chassis structure and a vehicle.

Background

Chinese application publication No. CN105644482a discloses a vehicle blast-proof shock wave floating floor structure, a protective floor plate located at the bottom of the vehicle body and extending along the length direction of the vehicle body, a pair of square steel pipes located right above the protective floor plate and extending in the same direction as the protective floor plate and separately located at both sides of the width direction of the protective floor plate, a pair of rubber suspensions corresponding to the square steel pipes and extending in the same direction as the square steel pipes, and a floating floor plate with both ends in the width direction fixed to the pair of rubber suspension tops and extending in the same direction as the protective floor plate; the floating floor comprises two layers which are stacked up and down: a composite material floor board positioned on the upper layer and a skeleton steel plate positioned on the lower layer; the composite material floor is fastened with the skeleton steel plate through a fastener; the fastener for fastening a composite floor panel with a skeletal steel plate includes: short bolts which sequentially penetrate through the material floor and the skeleton steel plate and nuts matched with the short bolts; square steel pipes positioned on the same side of the floating floor in the width direction, and the rubber suspension and the floating floor are fastened through fasteners; the fastener for fastening square steel pipes, rubber suspensions and floating floors comprises: the long bolts sequentially penetrate through the composite floor, the skeleton steel plate, the rubber suspension and the square steel pipes, and the nuts matched with the long bolts.

When the vehicle runs and encounters the attack of ground explosives, the V-shaped armor arrangement at the bottom of the vehicle can effectively disperse the impact waves of the explosives, so that the injuries to the vehicle and passengers are reduced; however, for a protection vehicle, the V-shaped armor of the bottom of the vehicle can greatly raise the height of the vehicle, thereby causing adverse effects on the concealment of the protection vehicle, and the V-shaped armor of the bottom of the vehicle reduces the height, so that the trafficability of the vehicle in complex terrains is low.

Disclosure of Invention

In order to solve the problems, the invention provides a vehicle chassis structure and a vehicle, when encountering the attack of ground explosives, the invention utilizes the energy of shock waves to destroy the weakened connection structures at the two ends of the vehicle bottom hanging armor while keeping the chassis at a low ground clearance, and the two ends of the vehicle bottom hanging armor are lifted by the shock waves and incline into a V shape to actively disperse the shock waves of the explosives, so that the injury of the shock waves of the explosion to passengers in the middle of the chassis is reduced; meanwhile, according to the impacted state of the chassis of the vehicle after the explosion attack, whether the vehicle bottom is unbundled with armor can be judged, the vehicle is ensured to drive away rapidly or be continuously protected, the device has a simple structure, and the device is convenient to assemble, disassemble and replace, and can be suitable for chassis explosion-proof shock waves of common vehicles.

The invention provides a vehicle chassis structure, which comprises threshold longitudinal beams and a chassis, wherein the left end and the right end of the chassis are respectively welded and fixed with the corresponding threshold longitudinal beams, and the vehicle chassis structure comprises fixed armors, at least two groups of middle supporting devices, at least two pairs of side supporting devices, left and right pieces of hanging armors and two pairs of hanging armors fixing devices;

The fixed armor is arranged below the chassis, the left end and the right end of the fixed armor are welded and fixed with the threshold longitudinal beam, the middle parts of the lower surfaces of the fixed armors are longitudinally and uniformly arranged and fixed with at least two groups of middle supporting devices, and the middle supporting devices are used for forming an explosion-proof supporting structure at the middle parts of the fixed armors and the inner side ends of the corresponding left and right hanging armors; two pairs of side supporting devices are symmetrically arranged on the left side and the right side of the lower surface of the fixed armor, one of the side supporting devices is used for providing suspension support for the outer side ends of the left and the right pieces of the hanging armor, the other is used for destroying the weakened connection structures at the two ends of the bottom hanging armor by utilizing the energy of shock waves when encountering the attack of ground explosives, the two ends of the bottom hanging armor are lifted by the shock waves and incline to form a V-shaped structure so as to disperse the shock waves of the explosives and weaken the injury of the shock waves of the explosion to passengers in the middle of the fixed armor;

The upper end faces of the hanging armors on the left side and the right side of the joint are fixedly connected with the lower ends of each group of middle supporting devices at corresponding positions respectively, the groups of middle supporting devices play a strong anti-explosion supporting role on the butt joint inner side ends of the left and the right hanging armors, and when encountering the attack of ground explosives, the connecting structures weakened at the two ends of the bottom hanging armors are damaged by utilizing the energy of shock waves when being matched with the side supporting devices, the two ends of the bottom hanging armors are lifted by the shock waves and incline into V shapes to disperse the shock waves of the explosives, so that the injury of the shock waves of the explosives to passengers on the middle part of the fixed armors is weakened; the left side end and the right side end of the two pieces of horizontally contacted hanging armor are respectively and elastically connected with the lower ends of the two opposite side end supporting devices at corresponding positions; a corresponding hanging armor fixing device is clamped on the corresponding hanging armor near the lower end of each side end supporting device through a clamping hole, and the hanging armor fixing device is fixedly connected with a corresponding threshold longitudinal beam; the device structure constitutes the double-deck explosion-proof protection armor of vehicle chassis, and the upper strata is fixed to be protected, and the lower floor can initiatively incline according to the intensity of explosion shock wave and constitute V style of calligraphy structure, so as to initiatively disperse the explosion shock wave to the automobile body both sides.

The whole of the hanging armor fixing device is integrally bent by a sheet to form a right-angle structure, a short side surface of the hanging armor fixing device of the right-angle structure is provided with a fixed connection hole, the front end of a long side of the hanging armor fixing device of the right-angle structure is upwards and vertically provided with a limit clamping edge of the right-angle structure, the limit clamping edge is clamped in the clamping hole, the front end of the long side of the hanging armor fixing device and the outer edge of a right-angle side formed by the limit clamping edge are provided with a first inclined surface missing part so as to weaken the connection strength of the position of the inclined surface missing part, and when encountering the attack of a ground explosive, the two side ends of the hanging armor are pushed to move upwards by utilizing the energy of shock waves, and as the connection strength of the inclined surface missing part is weakened, the hanging armor fixing device is very easy to break after being subjected to the upward external force with certain strength of the hanging armor, and the limit of the upward movement of the outer side end of the hanging armor is further relieved.

The outer edge of the right-angle edge of the limiting hook edge of the hanging armor fixing device is provided with a second inclined plane missing part, so that the limiting effect of the hanging armor fixing device on limiting hanging armor is further weakened.

The upper end face or the lower end face of the long side face of the hanging armor fixing device is provided with a plurality of strip-shaped grooves which are longitudinally arranged, the cross section of each strip-shaped groove is in a rectangular, inverted trapezoid, triangle or semicircular arc structure, and the arrangement of the structure further weakens the connection strength of the long side face so as to ensure that the hanging armor fixing device can release the limit fixation of the hanging armor when being subjected to upward external force with the corresponding strength of the hanging armor or explosion shock wave, and the outer side end of the hanging armor can move upwards to weaken the destructive power of the shock wave to a vehicle chassis.

Each side end supporting device comprises a first connecting base and a first spring, the upper end face of the first connecting base is fixedly connected with the lower end face of the fixed armor, the upper end of the first spring is fixedly connected with the lower end face of the first connecting base, the lower end of the first spring is fixedly connected with the corresponding hanging armor, one of the first springs plays a role in elastic connection, the other one of the first springs plays a role in damping and absorbing energy, and when the hanging armor fixing device releases the limit of the hanging armor, the first spring is compressed, plays a role in damping and absorbing energy to weaken explosion shock waves, and reduces the impact of the shock waves on the fixed armor.

The first connection base lower surface of the side end supporting device is embedded with a first pressure sensor and a plurality of first directional blasting explosive blocks, the upper end of a first spring is fixed on the surface of the first pressure sensor, when explosion shock waves push the outer side end of the hanging armor to move upwards, the first spring is driven to compress and absorb energy, the first spring can conduct the external force of the shock waves to the first pressure sensor, when the external force exerted by the explosion shock waves on the first pressure sensor does not reach the upper limit of the threshold set by the first pressure sensor, the first pressure sensor does not act, the plurality of first directional blasting explosive blocks are respectively fixed on the surface of the first pressure sensor inside the first spring and the lower surface of the first connection base in the peripheral circumference of the first spring, the plurality of first directional blasting explosive blocks are respectively electrically connected with the first pressure sensor through wires, when the external force conducted by the first pressure sensor reaches the upper limit of the threshold set by the first pressure sensor, the first pressure sensor sends out an electric signal, the plurality of first directional explosive blocks which are electrically connected are respectively detonated, and part of the impact on the explosion shock waves is counteracted, and meanwhile the connection between the upper end of the first spring and the first pressure sensor is relieved.

Each group of middle part strutting arrangement includes the second and connects the base and control two supporting shoes, the second is connected terminal surface and is fixed terminal surface middle part fixed connection under the armor, control two supporting shoes upper ends respectively with the second connect terminal surface symmetry fixed connection under the base, control two supporting shoes lower extreme and be connected with corresponding drape armor inboard end upper surface respectively, two drape armors, control two supporting shoes, the second is connected the I-shaped structure in base and fixed armor constitution middle part for when the explosion shock wave produced, two drape armors can initiatively become V-shaped structure, disperse the explosion shock wave to the both sides of automobile body width, the passenger safety in protection automobile body middle part top.

The lower surface of the second connecting base is embedded with two second pressure sensors, a four-way joint, two one-way valves and a plurality of second directional blasting explosive blocks, the two second pressure sensors are symmetrically embedded and fixed on the lower surface of the second connecting base, and the four-way joint is embedded and fixed on the lower surface of the second connecting base between the two second pressure sensors; each supporting block comprises an air damper and a second spring, the upper ends of the second springs are fixed on the lower surfaces of the corresponding second pressure sensors, the lower ends of the second springs are fixed on the upper surfaces of the inner sides of the corresponding draping armors, the upper ends of the air dampers are fixed in the middle of the lower surfaces of the corresponding second pressure sensors, the lower ends of the air dampers are respectively communicated with two corresponding interfaces of the four-way connectors, the other two interfaces of the four-way connectors are respectively communicated with one-way valves, when explosion shock waves surge to the inner sides of the draping armors, damping effects are generated through the four-way connectors and the one-way valves, simultaneously, the two second springs absorb fine compression, the second springs can transmit the external force of the shock waves to the second pressure sensors, when the external force applied by the explosion shock waves to the second pressure sensors does not reach the upper limit value set by the second pressure sensors, the second pressure sensors do not act, a plurality of second directional explosive blocks are respectively fixed on the lower surfaces of the second pressure sensors inside each second spring and the corresponding interfaces of the four-way connectors, the second directional explosive blocks are respectively connected with the second pressure sensors at the periphery of the corresponding positions of the second pressure sensors, the upper surfaces of the second directional explosive blocks are respectively connected with the second pressure sensors by the corresponding explosion shock waves, and the upper ends of the second directional explosive blocks are respectively released, the explosion shock waves are respectively and the explosion shock waves are blown up to the corresponding to the second pressure sensors are counteracted by the corresponding pressure sensors, and the explosion pressure waves are sent by the corresponding pressure waves, and the explosion pressure waves are sent by the pressure to the pressure sensors, when the first directional blasting explosive blocks of the left side end supporting device and the right side end supporting device are completely detonated, the outer side ends of the left side hanging armor and the right side hanging armor are in elastic connection relation with the fixed armor, and the corresponding second directional blasting explosive blocks are not detonated due to the fact that the threshold value of the second pressure sensor or one second pressure sensor of the middle supporting device is not up to the upper limit, the middle parts of the left side hanging armor and the right side hanging armor are still in connection relation with the fixed armor, a driver can manually send electric signals to the middle supporting device through information fed back to the middle control screen by all the first pressure sensors and the second pressure sensors, all the second directional blasting explosive blocks of the middle supporting device are detonated, the scrapped left side hanging armor and the scrapped right hanging armor after detonation are thoroughly peeled off and discarded by the fixed armor of a vehicle, and the influence on the running of the vehicle caused by wind resistance and collision with ground obstacles is reduced.

The pipeline of two other interfaces of four-way joint with two check valves intercommunication is the two segmentation pipelines that are the reducing structure from the inner to outer end, and two check valves all communicate in the terminal opening part of thin diameter pipeline, and two segmentation pipeline export pipelines of reducing structure diminish, compress exhaust gas, and the cooperation air damper reaches better damping effect, and the effect of check valve is in order to prevent that moisture, dust or silt etc. from getting into the four-way joint pipeline with air damper intercommunication and blocking the pipeline and causing the pipeline export unable exhaust.

The upper limit of the preset threshold value of each second pressure sensor of each group of middle supporting device is larger than the upper limit of the preset threshold value of the first pressure sensor of each side supporting device, the design purpose of the structure of the middle supporting device is to enable the inner side ends of two connected hanging armors to play a supporting role, the structural design of the side supporting devices is to disperse explosion shock waves to enable the outer side ends of the two hanging armors to incline upwards when the two hanging armors are subjected to shock wave external force, the whole two hanging armors are enabled to take a V-shaped structure under the shock wave action, so that the antiknock intensity of the middle supporting device is higher than the antiknock intensity of the side supporting devices, the upper limit of the preset threshold value of the second pressure sensor of the middle supporting device is larger than the upper limit of the preset threshold value of the first pressure sensor of the side supporting devices, and the design is beneficial to the fact that when the explosion shock wave intensity can only detonate the first directional blasting explosive blocks of the side supporting devices, and when the second directional blasting explosive blocks of the middle supporting devices cannot be detonated, the middle supporting devices can keep the two hanging armors to be continuously connected with the fixed armors, the chassis of a vehicle can be continuously connected, the chassis of the two hanging armors can be protected, the chassis of the vehicle can be continuously protected, the chassis is prevented from being damaged due to the explosion shock waves of the vehicle chassis of the vehicle is again, and the chassis of the vehicle is prevented from being damaged due to the explosion waves.

The seam of the lower surfaces of the two pieces of the hanging armors which are contacted with each other is provided with a seam shielding piece, the upper end surface of the seam shielding piece is fixedly connected with the lower surface of the inner side end of the left hanging armors or the lower surface of the inner side end of the right hanging armors which are contacted with the corresponding positions, and the seam shielding piece has the function of shielding the seam of the lower surfaces of the two pieces of the hanging armors, so that muddy water or sand particles are prevented from entering the middle supporting device from the seam to cause the failure of the device and then cannot work normally.

The invention discloses a vehicle, which comprises a left threshold longitudinal beam, a right threshold longitudinal beam, a central controller, a vehicle chassis structure, two pairs of hanging armor fixing devices, a first pressure sensor and a second pressure sensor, wherein the left side end and the right side end of a fixed armor are respectively welded and fixed with inner side walls corresponding to the left threshold longitudinal beam and the right threshold longitudinal beam, the two pairs of hanging armor fixing devices are respectively fixed on the inner side walls corresponding to the left threshold longitudinal beam and the right threshold longitudinal beam through bolts, the second pressure sensor on each group of middle supporting devices and the first pressure sensor on each side end supporting device are electrically connected with the central controller.

Principle of operation

The explosion releases the limit of the hanging armor fixing device to the hanging armor:

when the explosion-proof tire of the vehicle rolls to explosives such as mines, the explosion shock waves diffuse to the periphery, the outer side end of the hanging armor is subjected to upward external shock waves, the connecting part of the hanging armor fixing device and the clamped hanging armor is broken by the external force, the outer side ends of the hanging armor move upwards, the inner side ends of the two hanging armors have the effects of an air damper and a second spring energy absorption function, the upward movement quantity of the inner side ends of the two hanging armors is tiny, the two hanging armors are influenced by the shock waves to form a V-shaped structure with the outer ends inclined upwards, the explosion shock waves are guided to move towards the two sides of the width of the vehicle, and the impact of the shock waves to the middle part of the vehicle is reduced;

the strength of the shock wave does not reach the upper limit of the threshold value of the first pressure sensor, and the first directional blasting explosive block does not detonate:

When the intensity of the explosion shock wave is insufficient to cause the first pressure sensor of the side end supporting device to reach the upper threshold value, the first directional explosion explosive block of the side end supporting device cannot be detonated by the first pressure sensor, and after the shock wave is dissipated, the first spring rebounds to play an elastic connection role on the hanging armor;

The strength of the shock wave reaches the upper limit of the threshold value of the first pressure sensor, and the first directional blasting explosive block is detonated, so that whether the first directional blasting explosive block is detonated or not can be manually selected:

when the intensity of the explosion shock wave is enough to cause the first pressure sensor of the side end supporting device to reach the upper threshold value, the first directional explosion explosive block of the side end supporting device can be ignited and detonated by the first pressure sensor to offset the upward shock wave carried by the outer side end of a part of the hanging armor, so that the impact of the shock wave to the fixed armor at the corresponding position is reduced, after the shock wave is dissipated, the upper end of the first spring is exploded by the first directional explosion explosive block to be connected with the first connecting base, if the second directional explosion explosive block of the middle supporting device is not detonated by the second pressure sensor, the hanging armor is in a state that the inner side end is fixedly connected with the outer side end in a hanging manner, at the moment, a driver can learn the actual state of the chassis of the vehicle according to the signals fed back by the pressure sensors, can choose to carry the hanging armor to continue running, or choose to discard the hanging armor to run, for example, choose to run with weight reduction, manually instruct the second pressure sensor to detonate the second directional explosion explosive block, so that the middle supporting device is released from the connection with the fixed armor, discard the left and right hanging armor, and accelerate the running dangerous area;

the intensity of the shock wave reaches the upper limit of the threshold value of the first pressure sensor, and the intensity of the shock wave reaches the upper limit of the threshold value of the second pressure sensor, and the first directional blasting explosive block and the second directional blasting explosive block are detonated:

When the intensity of the explosion shock wave is enough to cause the first pressure sensor of the side end supporting device to reach the upper threshold value, and the intensity of the explosion shock wave is enough to cause the second pressure sensor of the middle supporting device to detonate the second directional explosion explosive block, the first directional explosion explosive block of the side end supporting device can be ignited and detonated by the first pressure sensor to offset the upward shock wave carried by the outer side end of a part of the hanging armor, meanwhile, the second directional explosion explosive block of the middle supporting device can also be ignited and detonated by the second pressure sensor to offset the upward shock wave carried by the inner side end of the part of the hanging armor, so that the shock wave is reduced to the fixed armor at the corresponding position, at the moment, the side end supporting device and the middle supporting device are completely disconnected with the fixed armor, the left and right scrapped hanging armor naturally falls to the ground, and a vehicle with an undamaged chassis can quickly drive away from a dangerous area after explosion.

Advantageous effects

When encountering the attack of ground explosives, the invention utilizes the energy of the shock wave to destroy the weakened connection structure at the two ends of the vehicle bottom hanging armor while keeping the ground clearance of the chassis low, and the two ends of the vehicle bottom hanging armor are lifted by the shock wave and incline into a V shape to actively disperse the shock wave of the explosives, thereby weakening the injury of the shock wave of the explosion to passengers in the middle of the chassis; meanwhile, according to the impacted state of the chassis of the vehicle after the explosion attack, whether the vehicle bottom is unbundled with armor can be judged, the vehicle is ensured to drive away rapidly or be continuously protected, the device has a simple structure, and the device is convenient to assemble, disassemble and replace, and can be suitable for chassis explosion-proof shock waves of common vehicles.

Drawings

Fig. 1 is a schematic diagram of the overall top perspective structure of the present invention.

Fig. 2 is a schematic diagram of the overall bottom view of the present invention.

Fig. 3 is a schematic diagram of the overall bottom perspective structure of the present invention.

Fig. 4 is an enlarged schematic view of the present invention draping armor fixing device.

Fig. 5 is an enlarged schematic view of the side end supporting apparatus of the present invention.

Fig. 6 is an enlarged schematic view of the middle supporting device of the present invention.

In the figure:

1. fixing armor;

2. A middle support device; 21. a second connection base; 22. a support block; 221. an air damper; 222. a second spring; 23. a second pressure sensor; 24. a four-way joint; 241. a thin diameter pipe; 25. a one-way valve; 26. a second block of directional blasting explosive;

3. A side end support device; 31. a first connection base; 32. a first spring; 33. a first pressure sensor; 34. a first directional blasting explosive block;

4. Coating armor; 41. a clamping hole;

5. Hanging an armor fixing device; 51. fixing the connecting hole; 52. a limit clamping hook edge; 53. a first slope missing portion; 54. a second slope missing portion; 55. a strip-shaped groove;

6. Seam shielding sheets;

7. And a threshold longitudinal beam.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present invention are shown.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-6, a vehicle chassis structure comprises a threshold longitudinal beam 7 and a chassis (not shown in the figure), wherein the left end and the right end of the chassis are respectively welded and fixed with the corresponding threshold longitudinal beam 7, and the chassis structure comprises a fixed armor 1, two groups of middle supporting devices 2, two pairs of side supporting devices 3, left and right pieces of hanging armor 4 and two pairs of hanging armor fixing devices 5;

the fixed armor 1 is arranged below the chassis, the left end and the right end of the fixed armor are welded and fixed with the threshold longitudinal beams 7, and the middle parts of the lower surface of the fixed armor 1 are longitudinally and uniformly arranged and fixed with two groups of middle supporting devices 2; two pairs of side supporting devices 3 are symmetrically arranged on the left side and the right side of the lower surface of the fixed armor 1;

The adjacent side walls of the left and right pieces of the hanging armor 4 are horizontally contacted and connected, the upper end faces of the hanging armor 4 at the left and right sides of the joint are respectively and fixedly connected with the lower ends of each group of middle supporting devices 2 at corresponding positions, and the left and right side ends of the two pieces of the horizontally contacted hanging armor 4 are respectively and elastically connected with the lower ends of the two pairs of side supporting devices 3 at corresponding positions; a corresponding hanging armor fixing device 5 is clamped on the corresponding hanging armor 4 near the lower end of each side end supporting device 3 through a clamping hole 41, and the hanging armor fixing device 5 is fixedly connected with the corresponding threshold longitudinal beam 7.

The whole of the hanging armor fixing device 5 is integrally bent by a sheet material to form a right-angle structure, a short side surface of the hanging armor fixing device 5 of the right-angle structure is provided with a fixed connection hole 51, the front end of a long side of the hanging armor fixing device 5 of the right-angle structure is upwards and vertically provided with a limit clamping edge 52 of the right-angle structure, the limit clamping edge 52 is clamped in the clamping hole 41, and a right-angle edge outer edge formed by the front end of the long side of the hanging armor fixing device 5 and the limit clamping edge 52 is provided with a first inclined surface missing part 53.

Three strip-shaped grooves 55 which are longitudinally arranged are formed in the upper end face of the long side face of the draping armor fixing device 5, and the section of each strip-shaped groove 55 is of an inverted triangle structure.

Each side end supporting device 3 comprises a first connecting base 31 and a first spring 32, the upper end face of the first connecting base 31 is fixedly connected with the lower end face of the fixed armor 1, the upper end of the first spring 32 is fixedly connected with the lower end face of the first connecting base 31, and the lower end of the first spring 32 is fixedly connected with the corresponding hanging armor 4.

The lower surface of the first connecting base 31 of the side end supporting device 3 is embedded with a first pressure sensor 33 and five first directional blasting explosive blocks 34, the upper end of the first spring 32 is fixed on the surface of the first pressure sensor 33, the five first directional blasting explosive blocks 34 are respectively fixed on the surface of the first pressure sensor 33 inside the first spring 32 and the lower surface of the first connecting base 31 around the periphery of the first spring 32, and the five first directional blasting explosive blocks 34 are respectively electrically connected with the first pressure sensor 33 through wires.

Each group of middle supporting device 2 comprises a second connecting base 21 and left and right supporting blocks 22, the supporting blocks 22 can be metal supporting columns (not shown in the figure), the upper end face of the second connecting base 21 is fixedly connected with the middle part of the lower end face of the fixed armor 1, the upper ends of the supporting blocks 22 formed by the left and right metal supporting columns are respectively and symmetrically and fixedly connected with the lower end face of the second connecting base 21, and the lower ends of the supporting blocks 22 formed by the left and right metal supporting columns are respectively connected with the upper surfaces of the inner side ends of the corresponding draping armor 4.

The joint of the lower surfaces of the two pieces of the hanging armor 4 which are contacted with each other is provided with a joint shielding piece 6, and the upper end surface of the joint shielding piece 6 is fixedly connected with the lower surface of the inner side end of the left hanging armor 4 which is contacted with the corresponding position.

Example 2

Referring to fig. 1-6, a vehicle chassis structure comprises a threshold longitudinal beam 7 and a chassis (not shown in the figure), wherein the left end and the right end of the chassis are respectively welded and fixed with the corresponding threshold longitudinal beam 7, and the vehicle chassis structure comprises a fixed armor 1, three groups of middle supporting devices 2, two pairs of side supporting devices 3, left and right pieces of hanging armor 4 and two pairs of hanging armor fixing devices 5;

The fixed armor 1 is arranged below the chassis, the left end and the right end of the fixed armor are welded and fixed with the threshold longitudinal beams 7, and three groups of middle supporting devices 2 are longitudinally and uniformly arranged and fixed in the middle of the lower surface of the fixed armor 1; two pairs of side supporting devices 3 are symmetrically arranged on the left side and the right side of the lower surface of the fixed armor 1;

The outer edge of the right-angle edge of the limit clamping hook edge 52 of the hanging armor fixing device 5 is provided with a second inclined plane missing part 54.

Three strip-shaped grooves 55 which are longitudinally arranged are formed in the upper end face of the long side face of the draping armor fixing device 5, and the section of each strip-shaped groove 55 is of a rectangular structure.

Each group of middle supporting device 2 comprises a second connecting base 21 and left and right supporting blocks 22, the upper end face of the second connecting base 21 is fixedly connected with the middle part of the lower end face of the fixed armor 1, the upper ends of the left and right supporting blocks 22 are respectively and symmetrically fixedly connected with the lower end face of the second connecting base 21, and the lower ends of the left and right supporting blocks 22 are respectively connected with the upper surfaces of the inner side ends of the corresponding draping armor 4.

The lower surface of the second connecting base 21 is embedded with two second pressure sensors 23, a four-way joint 24, two one-way valves 25 and ten second directional blasting explosive blocks 26, the two second pressure sensors 23 are symmetrically embedded and fixed on the lower surface of the second connecting base 21, and the four-way joint 24 is embedded and fixed on the lower surface of the second connecting base 21 between the two second pressure sensors 23; each supporting block 22 comprises an air damper 221 and a second spring 222, the upper ends of the second springs 222 are fixed on the lower surfaces of the corresponding second pressure sensors 23, the lower ends of the second springs 222 are fixed on the upper surfaces of the inner side ends of the corresponding hanging armors 4, the upper ends of the air dampers 221 are fixed in the middle of the lower surfaces of the corresponding second pressure sensors 23, the lower ends of the air dampers 221 are fixed on the upper surfaces of the inner side ends of the corresponding hanging armors 4, two air dampers 221 are respectively communicated with two interfaces corresponding to the four-way joint 24, one-way valves 25 are respectively communicated with the other two interfaces of the four-way joint 24, ten second directional blasting explosive blocks 26 are respectively fixed on the lower surfaces of the second pressure sensors 23 inside each second spring 222 and the lower surfaces of the second connecting bases 21 in the peripheral circumference of each second spring 222, and the ten second directional blasting explosive blocks 26 are respectively electrically connected with the second pressure sensors 23 in corresponding positions through wires.

The pipelines of the other two interfaces of the four-way joint 24 communicated with the two one-way valves 25 are two-section pipelines with a diameter-reduced structure from the inner end to the outer end, and the two one-way valves 25 are communicated with the tail end opening of the thin-diameter pipeline 241.

The preset upper threshold limit of each second pressure sensor 23 of each set of mid-support means 2 is greater than the preset upper threshold limit of the first pressure sensor 33 of the lateral end support means 3.

The joint of the lower surfaces of the two pieces of the hanging armor 4 which are contacted with each other is provided with a joint shielding piece 6, and the upper end surface of the joint shielding piece 6 is fixedly connected with the lower surface of the inner side end of the right hanging armor 4 which is contacted with the corresponding position.

Example 3

Referring to fig. 1-6, a vehicle includes a central controller and a vehicle chassis structure, with the second pressure sensor 23 on each set of center support devices 2 and the first pressure sensor 33 on each side support device 3 being electrically connected to the central controller.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a vehicle chassis structure, includes threshold longeron (7) and chassis, both ends respectively with corresponding threshold longeron (7) welded fastening about the chassis, its characterized in that: comprises a fixed armor (1), at least two groups of middle supporting devices (2), at least two pairs of side supporting devices (3), a left and a right pieces of hanging armor (4) and two pairs of hanging armor fixing devices (5);

The fixed armor (1) is arranged below the chassis, the left end and the right end of the fixed armor are welded and fixed with the threshold longitudinal beams (7), and at least two groups of middle supporting devices (2) are longitudinally and uniformly arranged and fixed in the middle of the lower surface of the fixed armor (1); two pairs of side supporting devices (3) are symmetrically arranged on the left side and the right side of the lower surface of the fixed armor (1);

The adjacent side walls of the left and right pieces of the hanging armor (4) are horizontally contacted, the upper end surfaces of the hanging armor (4) at the left and right sides of the joint are respectively and fixedly connected with the lower ends of each group of middle supporting devices (2) at corresponding positions, and the left and right side ends of the two pieces of the horizontally contacted hanging armor (4) are respectively and elastically connected with the lower ends of the two pairs of side supporting devices (3) at corresponding positions; a corresponding hanging armor fixing device (5) is clamped on the corresponding hanging armor (4) near the lower end of each side end supporting device (3) through a clamping hole (41), and the hanging armor fixing device (5) is fixedly connected with the corresponding threshold longitudinal beam (7);

Each side end supporting device (3) comprises a first connecting base (31) and a first spring (32), the upper end face of the first connecting base (31) is fixedly connected with the lower end face of the fixed armor (1), the upper end of the first spring (32) is fixedly connected with the lower end face of the first connecting base (31), and the lower end of the first spring (32) is fixedly connected with the corresponding hanging armor (4);

The lower surface of a first connecting base (31) of the side end supporting device (3) is embedded with a first pressure sensor (33) and a plurality of first directional blasting explosive blocks (34), the upper end of a first spring (32) is fixed on the surface of the first pressure sensor (33), the plurality of first directional blasting explosive blocks (34) are respectively fixed on the surface of the first pressure sensor (33) inside the first spring (32) and the lower surface of the first connecting base (31) in the peripheral circumference of the first spring (32), and the plurality of first directional blasting explosive blocks (34) are respectively electrically connected with the first pressure sensor (33) through wires.

2. A vehicle chassis structure according to claim 1, wherein: the whole of the armour fixing device (5) of the armour is bent integrally by the sheet material to form a right-angle structure, a fixed connection hole (51) is formed in the short side surface of the armour fixing device (5) of the right-angle structure, the armour fixing device (5) of the armour is fixedly connected with the inner side wall of the corresponding threshold longitudinal beam (7) through a bolt penetrating through the fixed connection hole (51), a limit trip edge (52) of the right-angle structure is vertically arranged at the front end of the long side of the armour fixing device (5) of the right-angle structure upwards, the limit trip edge (52) is clamped in the clamping hole (41), and a first inclined surface missing part (53) is formed at the outer edge of the right-angle edge formed by the front end of the long side of the armour fixing device (5) of the armour and the limit trip edge (52).

3. A vehicle chassis structure according to claim 2, wherein: the outer edge of the right-angle edge of the limit clamping hook edge (52) of the hanging armor fixing device (5) is provided with a second inclined plane missing part (54).

4. A vehicle chassis structure according to claim 1, wherein: the upper end face or the lower end face of the long side face of the hanging armor fixing device (5) is provided with a plurality of strip-shaped grooves (55) which are longitudinally arranged, and the section of each strip-shaped groove (55) is in a rectangular, inverted trapezoid, triangle or semicircular arc structure.

5. A vehicle chassis structure according to claim 1, wherein: each group of middle supporting device (2) comprises a second connecting base (21) and a left supporting block and a right supporting block (22), the upper end face of the second connecting base (21) is fixedly connected with the middle part of the lower end face of the fixed armor (1), the upper ends of the left supporting block and the right supporting block (22) are respectively and symmetrically fixedly connected with the lower end face of the second connecting base (21), and the lower ends of the left supporting block and the right supporting block (22) are respectively connected with the upper surfaces of the inner side ends of the corresponding hanging armor (4).

6. A vehicle chassis structure according to claim 5, wherein: two second pressure sensors (23), a four-way joint (24), two one-way valves (25) and a plurality of second directional blasting explosive blocks (26) are embedded on the lower surface of the second connecting base (21), the two second pressure sensors (23) are symmetrically embedded and fixed on the lower surface of the second connecting base (21), and the four-way joint (24) is embedded and fixed on the lower surface of the second connecting base (21) between the two second pressure sensors (23); each supporting block (22) comprises an air damper (221) and a second spring (222), the upper ends of the second springs (222) are fixed on the lower surfaces of corresponding second pressure sensors (23), the lower ends of the second springs (222) are fixed on the upper surfaces of the inner side ends of corresponding hanging armors (4), the upper ends of the air dampers (221) are fixed on the middle parts of the lower surfaces of corresponding second pressure sensors (23), the lower ends of the air dampers (221) are fixed on the upper surfaces of the inner side ends of corresponding hanging armors (4), the two air dampers (221) are respectively communicated with two interfaces corresponding to the four-way joint (24), one-way valves (25) are respectively communicated with the other two interfaces of the four-way joint (24), a plurality of second directional blasting explosive blocks (26) are respectively fixed on the lower surfaces of the second pressure sensors (23) in the inner parts of each second spring (222) and the lower surfaces of second connection bases (21) in the peripheral directions of each second spring (222), and the plurality of second directional blasting blocks (26) are respectively electrically connected with the second pressure sensors (23) in corresponding positions through wires.

7. A vehicle chassis structure according to claim 6, wherein: the pipelines of the other two interfaces of the four-way joint (24) communicated with the two one-way valves (25) are two-section pipelines with a diameter-reducing structure from the inner end to the outer end, and the two one-way valves (25) are communicated with the tail end opening of the thin-diameter pipeline (241).

8. A vehicle chassis structure according to claim 7, wherein: the preset upper threshold limit of each second pressure sensor (23) of each group of middle supporting devices (2) is larger than the preset upper threshold limit of the first pressure sensor (33) of the side supporting devices (3).

9. A vehicle chassis structure according to claim 1, wherein: the joint of the lower surfaces of the two pieces of the hanging armors (4) which are contacted with each other is provided with a joint shielding piece (6), and the upper end surface of the joint shielding piece (6) is fixedly connected with the lower surface of the inner side end of the left hanging armor (4) or the lower surface of the inner side end of the right hanging armor (4) which is contacted with the corresponding position.

10. A vehicle, characterized in that: comprising a central controller, and further comprising a vehicle chassis structure according to any of claims 1-9, the second pressure sensor (23) on each set of mid-support means (2) and the first pressure sensor (33) on each side-support means (3) being electrically connected to the central controller.