CN210591743U

CN210591743U - Rear-mounted detachable protection plate for large and medium-sized motor vehicles

Info

Publication number: CN210591743U
Application number: CN201920677683.2U
Authority: CN
Inventors: 刘宜祥; 尹青; 刘鑫炜; 刘成; 刘应和
Original assignee: Hubei Shenjiu Automobile Supplies Co ltd
Current assignee: Hubei Shenjiu Automobile Supplies Co ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-05-22
Anticipated expiration: 2029-05-13

Abstract

The utility model provides a large and medium-sized motor vehicle rearmounted detachable guard plate, includes first crossbeam and second crossbeam, and the middle part at the first crossbeam back is equidistant fixedly equipped with three power mechanism of unloading side by side, and three other end and the positive middle part fixed connection of second crossbeam of unloading power mechanism unload power mechanism and insert the post including unloading power sleeve and unloading power, unload power sleeve and arrange in the inside that the post was inserted to unloading power, unload power sleeve and keep away from the one end that the post was inserted to unloading power and the back threaded connection of first crossbeam fixed. The utility model discloses an elasticity of first buffer spring, second buffer spring's elasticity and the combined action of the inside air pressure of power of unloading air chamber offset the impact force that the collision produced, the device only first crossbeam can be injured and warp when receiving the collision, can carry out effectual protection to guard plate body and motor vehicle body like this, all adopt threaded connection between this guard plate and the motor vehicle simultaneously, be convenient for install and dismantle the device.

Description

Rear-mounted detachable protection plate for large and medium-sized motor vehicles

Technical Field

The utility model belongs to car afterbody anticollision institution especially relates to a large and middle-sized motor vehicle rearmounted detachable guard plate.

Background

The anti-collision beam of the motor vehicle is a device for reducing the impact energy absorption of the vehicle when the vehicle is collided, can effectively absorb the impact energy when the vehicle is collided, reduces the damage of the impact force to a beam of a vehicle body as much as possible, and plays a role in protecting the vehicle.

The anti-collision buffer device and the motor vehicle disclosed by the chinese utility model CN207594881U disclose "include anti-collision beam and a plurality of bumper beams, one end of the plurality of bumper beams is fixedly connected with the anti-collision beam, and the other end is fixedly connected with the vehicle body. The bumper beam comprises a connecting plate, a first bumper plate and a second bumper plate, wherein the first bumper plate and the second bumper plate are symmetrically arranged, the connecting plate is fixedly connected with the vehicle body, one end of the first bumper plate is fixedly connected with the anti-collision beam, the other end of the first bumper plate is fixedly connected with the connecting plate, one end of the second bumper plate is fixedly connected with the anti-collision beam, and the other end of the second bumper plate is fixedly connected with the connecting plate. The embodiment of the utility model provides a crashproof buffer and motor vehicle can alleviate the impact force that the collision produced when the motor vehicle takes place the traffic accident, effectual protection driver and crew, crashproof buffer's each spare part all is fixed connection structure in the contrast file, the car is when receiving the collision like this, the impact force that the deformation that leans on each spare part of crashproof buffer completely comes the buffering collision to produce, still there is the problem that causes comparatively serious damage to each spare part of crashproof buffer and car body. Therefore, the invention provides an improvement to the rear-mounted detachable protection plate of large and medium-sized motor vehicles.

Disclosure of Invention

The utility model aims at further improving current motor vehicle back anticollision buffer's energy-absorbing performance, solve current motor vehicle back anticollision buffer often can't the unable absorption of strong impact and lead to the technical problem that the car back beam seriously warp.

In order to solve the technical problem, the utility model provides a following technical scheme:

a rear-mounted detachable protection plate for large and medium-sized motor vehicles comprises a first cross beam and a second cross beam, wherein a fixing block used for being connected with a motor vehicle cross beam is arranged on the second cross beam, the first cross beam and the second cross beam are arranged in parallel, a force unloading mechanism is perpendicular to the first cross beam and the second cross beam and arranged between the first cross beam and the second cross beam, the force unloading mechanism comprises a force unloading sleeve and a force unloading insertion column, the force unloading sleeve is arranged in the force unloading insertion column, one end, far away from the force unloading insertion column, of the force unloading sleeve is fixedly connected with the first cross beam, and one end, far away from the force unloading sleeve, of the force unloading insertion column is fixedly connected with the second cross beam; or one end of the force unloading sleeve, which is far away from the force unloading inserting column, is fixedly connected with the second cross beam, and one end of the force unloading inserting column, which is far away from the force unloading sleeve, is fixedly connected with the first cross beam; the second inserting column is arranged in the force unloading mechanism, one end of the second inserting column is arranged in the jack of the force unloading sleeve, the other end of the second inserting column is connected with the bottom side of the inner wall of the force unloading air chamber in the force unloading inserting column, a second buffer spring is arranged on the second inserting column, and an overflow hole is formed in the side face penetrating through the force unloading inserting column.

The force unloading sleeve is movably inserted at the end part of the force unloading insertion column, a piston ring is fixedly arranged at the end part of the force unloading sleeve positioned in the force unloading air chamber, the piston ring is connected in the force unloading air chamber in a sliding manner, one side of the second buffer spring is connected with the piston ring in a contact manner, and the other side of the second buffer spring is connected with the inner wall of the bottom of the force unloading air chamber in a contact manner.

Including a plurality of overflow holes, a plurality of overflow holes are from the one end of unloading the power and inserting the equidistant setting of one end to the other end of post on unloading the power and inserting the post.

The first buffer spring is arranged on the first inserting column and positioned between the first cross beam and the second cross beam; one end of the first inserting column is fixedly connected with the first cross beam, the other end of the first inserting column penetrates through the second cross beam, and the end can do back-and-forth penetrating type movement in the second cross beam, or one end of the first inserting column is fixedly connected with the second cross beam, the other end of the first inserting column penetrates through the first cross beam, and the end can do back-and-forth penetrating type movement in the first cross beam.

One side of the first cross beam, which is far away from the second cross beam, is provided with a plurality of fixing holes, and fluorescent liquid boxes are embedded in the fixing holes.

A buffer cushion is arranged at the end part of the force-unloading inserting column far away from the force-unloading air chamber.

The fixed block is provided with a bolt hole used for connecting the tail part of a beam of the motor vehicle.

The utility model has the advantages that: this kind of big rear detachable guard plate of medium-sized motor vehicle, elasticity through first buffer spring, the combined action of the elasticity of second buffer spring and the inside air pressure of power of unloading air chamber, let first crossbeam slow down gradually and alleviate impact force, whole guard plate is when receiving the impact, first crossbeam becomes deceleration motion from acceleration motion gradually, with this offset the impact force that the collision produced, the device only can be injured by first crossbeam when receiving the collision and warp, can carry out effectual protection to guard plate body and motor vehicle body like this, simultaneously first crossbeam and first insert between the post, first crossbeam and unload between the sleeve, the second crossbeam inserts between post and this guard plate and the motor vehicle with unloading power and all adopt threaded connection, be convenient for install and dismantle the device.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic top view of a cross-sectional structure of a second cross member of the present invention;

FIG. 3 is a schematic view of the top cross-sectional structure of the middle unloading insert column of the present invention;

fig. 4 is a schematic view of a front side split structure of the first cross beam in the present invention;

fig. 5 is a schematic top view of the cushion pad of the present invention.

In the figure: 1. a first cross member; 101. a fixing hole; 102. a fluorescent liquid box; 2. a second cross member; 3. a force-unloading mechanism; 301. a force-releasing sleeve; 302. force unloading and column inserting; 303. a force-unloading air chamber; 304. a piston ring; 4. a first insert post; 401. a baffle plate; 5. a first buffer spring; 6. a fixed block; 7. a through hole; 8. a second insert post; 9. a jack; 10. a second buffer spring; 11. an overflow aperture; 12. a cushion pad.

Detailed Description

A rear detachable protection plate for large and medium-sized motor vehicles comprises a first cross beam 1 and a second cross beam 2, wherein a fixing block 6 used for being connected with a beam of the motor vehicle is arranged on the second cross beam 2, the first cross beam 1 and the second cross beam 2 are arranged in parallel, a force unloading mechanism 3 is arranged between the first cross beam 1 and the second cross beam 2 and is perpendicular to the first cross beam 1 and the second cross beam 2, the force unloading mechanism 3 comprises a force unloading sleeve 301 and a force unloading insertion column 302, the force unloading sleeve 301 is arranged in the force unloading insertion column 302, one end, far away from the force unloading insertion column 302, of the force unloading sleeve 301 is fixedly connected with the first cross beam 1, and one end, far away from the force unloading sleeve 301, of the force unloading insertion column 302 is fixedly connected with the second cross beam 2; or one end of the force-unloading sleeve 301 far away from the force-unloading inserting column 302 is fixedly connected with the second cross beam 2, and one end of the force-unloading inserting column 302 far away from the force-unloading sleeve 301 is fixedly connected with the first cross beam 1; a second inserting column 8 is arranged in the force unloading mechanism 3, one end of the second inserting column 8 is arranged in the inserting hole 9 of the force unloading sleeve 301, the other end of the second inserting column 8 is connected with the bottom side of the inner wall of the force unloading air chamber 303 in the force unloading inserting column 302, a second buffer spring 10 is arranged on the second inserting column 8, and an overflow hole 11 is arranged on the side surface penetrating through the force unloading inserting column 302.

In the unloading mechanism 3, specifically, the unloading sleeve 301 is movably inserted into the end of the unloading insertion column 302, the end of the unloading sleeve 301 located inside the unloading air chamber 303 is fixedly provided with the piston ring 304, the piston ring 304 is slidably connected inside the unloading air chamber 303, one side of the second buffer spring 10 is in contact connection with the piston ring 304, and the other side of the second buffer spring is in contact connection with the inner wall of the bottom of the unloading air chamber 303.

The utility model discloses still include a plurality of overflow hole 11 from the one end of unloading power and inserting post 302 to the equidistant setting of the other end on unloading power and inserting post 302.

The first buffer spring 5 is arranged on the first inserting column 4 and is positioned between the first cross beam 1 and the second cross beam 2; one end of the first inserting column 4 is fixedly connected with the first beam 1, the other end penetrates through the second beam 2 and the end can do back and forth penetrating type movement in the second beam 2, or one end of the first inserting column 4 is fixedly connected with the second beam 2, the other end penetrates through the first beam 1 and the end can do back and forth penetrating type movement in the first beam 1.

A plurality of fixing holes 101 are formed in one side of the first beam 1, which is far away from the second beam 2, and fluorescent liquid boxes 102 are embedded in the fixing holes 101.

The end of the force-discharging insert column 302 far away from the force-discharging air chamber 303 is provided with a cushion pad 12.

The fixed block 6 is provided with a bolt hole 7 for connecting with the tail part of a beam of a motor vehicle.

Example (b):

as shown in fig. 1 to 5, it includes a first beam 1 and a second beam 2, the middle of the back of the first beam 1 is provided with three unloading mechanisms 3 at equal intervals side by side, the other ends of the three unloading mechanisms 3 are fixedly connected with the front middle of the second beam 2, the unloading mechanisms 3 include unloading sleeves 301 and unloading inserting columns 302, the unloading sleeves 301 are arranged inside the unloading inserting columns 302, the unloading sleeves 301 are far away from the unloading inserting columns 302 and fixed with the back of the first beam 1 by threaded connection, the unloading inserting columns 302 are far away from the unloading sleeves 301 and fixed with the front of the second beam 2 by threaded connection, the two ends of the back of the first beam 1 are all threaded connected with first inserting columns 4, the other ends of the two first inserting columns 4 respectively penetrate through the two ends of the front of the second beam 2, the surface of the first inserting columns 4 far away from the first beam 1 side of the second beam 2 is fixedly provided with a baffle 401, the outer wall of the first inserting columns 4 between the first beam 1 and the second beam 2 is sleeved with first buffer springs Spring 5, the middle part at the 2 backs of second crossbeam is welded fastening side by side and is equipped with two fixed blocks 6, and four through-holes 7 have all been seted up to the positive top of two fixed blocks 6 and bottom, and four through-holes 7 are the rectangle and distribute.

The unloading air chamber 303 is formed in the unloading inserting column 302, the unloading sleeve 301 is movably inserted into the end of the unloading inserting column 302, the piston ring 304 is fixedly arranged at the end of the unloading sleeve 301 located in the unloading air chamber 303, the piston ring 304 is slidably connected inside the unloading air chamber 303, the unloading sleeve 301 can slide in the unloading inserting column 302 when collision occurs, hard collision is avoided, the unloading mechanism 3 is prevented from deforming, and the unloading mechanism 3 is effectively protected.

Wherein, the fixed second of being equipped with of center at the bottom of unloading air chamber 303 groove inserts post 8, the jack 9 has been seted up to the one end that unloading sleeve 301 is close to unloading power and inserts post 302, the second is inserted the inside of post 8 activity grafting at jack 9, the cover is equipped with second buffer spring 10 on the outer wall that is located the second of unloading between sleeve 301 tip and the bottom of unloading power air chamber 303 groove and inserts post 8, when unloading sleeve 301 inserts post 302's internal motion to unloading power, can extrude second buffer spring 10, at this moment second buffer spring 10 can provide an elasticity opposite with the extrusion force direction to unloading power sleeve 301, can effectually alleviate some impact force.

Wherein, the bilateral symmetry of unloading power and inserting post 302 outer wall has seted up a plurality of overflow hole 11, and a plurality of overflow hole 11 is from the equidistant distribution of left hand right side, sets up a plurality of overflow hole 11 and can release the gas of unloading power air chamber 303 inside, and the internal pressure of avoiding unloading power air chamber 303 leads to unloading power and inserts post 302 and break, inserts post 302 and carries out effectual protection to unloading power.

Wherein, a plurality of fixed orifices 101 have been seted up to the front of first crossbeam 1 equidistant, all inlays in a plurality of fixed orifices 101 and is equipped with fluorescence liquid box 102, inlays in the inside of fixed orifices 101 and establishes fluorescence liquid box 102, and the light that fluorescence liquid box 102 sent can let the driver of back remind night for the vehicle in the place ahead of timely discovery of the driver of back.

Wherein, unload power and insert the fixed blotter 12 that is equipped with of one end that post 302 is close to first crossbeam 1, blotter 12 adopts rubber to make, and is comparatively serious when the collision, and the back of first crossbeam 1 and the tip contact of unloading power and inserting post 302, blotter 12 can effectually alleviate first crossbeam 1 and unload the collision between the power and insert the post 302, carry out effectual protection to the guard plate body.

When the device works, the whole device is assembled, then a bolt penetrates through the through hole 7 to fixedly connect the fixed block 6 with the tail part of the motor vehicle, and then the device is installed behind the motor vehicle, when the tail part of the motor vehicle is collided, impact force generated by collision is transmitted to the first cross beam 1, so that the first cross beam 1 drives the first insert column 4 and the unloading sleeve 301 to move towards the second cross beam 2, at the moment, the first buffer spring 5 on the surface of the first insert column 4 is compressed to generate elastic force opposite to the moving direction of the first cross beam 1 for the first cross beam 1, in addition, when the unloading sleeve 301 moves towards the inside of the unloading insert column 302, the unloading sleeve 301 compresses the second buffer spring 10 on the surface of the second insert column 8, the unloading sleeve 301 drives the piston ring 304 to move to compress air in the unloading air chamber 303, and the second buffer spring 10 is compressed to generate elastic force opposite to the impact force for the unloading sleeve 301, when the air in the unloading air chamber 303 is compressed, the air in the unloading air chamber 303 is forced to be discharged to the outside of the unloading insert column 302 from the overflow holes 11, along with the further movement of the unloading sleeve 301, the overflow holes 11 on the wall of the unloading insert column 302 are gradually reduced, the total area of the overflow holes 11 is gradually reduced, the air pressure in the unloading air chamber 303 is gradually increased, the reaction force to the impact force generated by collision is gradually increased, the first beam 1 is gradually decelerated to relieve the impact force through the combined action of the elastic force of the first buffer spring 5, the elastic force of the second buffer spring 10 and the air pressure in the unloading air chamber 303, when the whole protection plate is impacted, the first beam 1 gradually changes from acceleration motion to deceleration motion so as to counteract the impact force generated by collision, and only the first beam 1 can deform when the device is impacted, can carry out effectual protection to guard plate body and motor vehicle body like this, all adopt threaded connection between first crossbeam 1 and the first post of inserting 4 simultaneously, between first crossbeam 1 and the power of unloading sleeve 301, between second crossbeam 2 and the power of unloading insert post 302 and this guard plate and the motor vehicle, be convenient for install and dismantle the device.

Claims

1. The utility model provides a large and middle-sized rearmounted detachable guard plate of motor vehicle, includes first crossbeam (1) and second crossbeam (2), is equipped with on second crossbeam (2) to be used for fixed block (6) be connected with the motor vehicle girder, its characterized in that: the first cross beam (1) and the second cross beam (2) are arranged in parallel, the force unloading mechanism (3) is perpendicular to the first cross beam (1) and the second cross beam (2) and arranged between the first cross beam (1) and the second cross beam (2), the force unloading mechanism (3) comprises a force unloading sleeve (301) and a force unloading inserting column (302), the force unloading sleeve (301) is arranged inside the force unloading inserting column (302), one end, far away from the force unloading inserting column (302), of the force unloading sleeve (301) is fixedly connected with the first cross beam (1), and one end, far away from the force unloading sleeve (301), of the force unloading inserting column (302) is fixedly connected with the second cross beam (2); or one end of the force unloading sleeve (301) far away from the force unloading inserting column (302) is fixedly connected with the second cross beam (2), and one end of the force unloading inserting column (302) far away from the force unloading sleeve (301) is fixedly connected with the first cross beam (1); the second inserting column (8) is arranged in the force unloading mechanism (3), one end of the second inserting column (8) is arranged in the jack (9) of the force unloading sleeve (301), the other end of the second inserting column is connected with the bottom side of the inner wall of the force unloading air chamber (303) in the force unloading inserting column (302), a second buffer spring (10) is arranged on the second inserting column (8), and an overflow hole (11) is formed in the side face penetrating through the force unloading inserting column (302).

2. The rear-mounted detachable fender of a large or medium-sized motor vehicle as claimed in claim 1, wherein: the force unloading sleeve (301) is movably inserted at the end part of the force unloading insertion column (302), a piston ring (304) is fixedly arranged at the end part of the force unloading sleeve (301) positioned in the force unloading air chamber (303), the piston ring (304) is connected in the force unloading air chamber (303) in a sliding mode, one side of a second buffer spring (10) is connected with the piston ring (304) in a contact mode, and the other side of the second buffer spring is connected with the inner wall of the bottom of the force unloading air chamber (303) in a contact mode.

3. The large and medium sized motor vehicle rear removable fender according to claim 1 or 2, wherein: the force-unloading inserting column comprises a plurality of overflow holes (11), wherein the overflow holes (11) are arranged on the force-unloading inserting column (302) at equal intervals from one end to the other end of the force-unloading inserting column (302).

4. The large and medium sized motor vehicle rear removable fender according to claim 1 or 2, wherein: the first buffer spring is perpendicular to the first cross beam (1) and the second cross beam (2), a first inserting column (4) is arranged between the first cross beam (1) and the second cross beam (2), and a first buffer spring (5) is arranged on the first inserting column (4) and between the first cross beam (1) and the second cross beam (2); one end of the first inserting column (4) is fixedly connected with the first beam (1), the other end of the first inserting column penetrates through the second beam (2) and the end can do back and forth penetrating type movement in the second beam (2), or one end of the first inserting column (4) is fixedly connected with the second beam (2), the other end of the first inserting column penetrates through the first beam (1) and the end can do back and forth penetrating type movement in the first beam (1).

5. The rear-mounted detachable fender of a large or medium-sized motor vehicle as claimed in claim 1, wherein: a plurality of fixing holes (101) are formed in one side, far away from the second cross beam (2), of the first cross beam (1), and fluorescent liquid boxes (102) are embedded in the fixing holes (101).

6. The rear-mounted detachable fender of a large or medium-sized motor vehicle as claimed in claim 1, wherein: a buffer pad (12) is arranged at the end part of the force unloading insert column (302) far away from the force unloading air chamber (303).

7. The large and medium sized motor vehicle rear detachable fender according to claim 1, 2, 5 or 6, wherein: and a bolt hole (7) used for being connected with the tail part of a crossbeam of the motor vehicle is arranged on the fixing block (6).