CN112576119B

CN112576119B - Cab overturning unlocking system and vehicle

Info

Publication number: CN112576119B
Application number: CN201910933739.0A
Authority: CN
Inventors: 卢秋宇; 李鹏; 胡运延; 刘人毅
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2022-01-07
Anticipated expiration: 2039-09-29
Also published as: CN112576119A

Abstract

The invention belongs to the technical field of front panel locks, and relates to a cab turning unlocking system and a vehicle. The cab overturning and unlocking system comprises a cab overturning device for overturning a cab and a front panel lock, wherein the front panel lock is connected between the cab and a front panel of a vehicle, and the front panel lock has a locking state and an unlocking state; in the locking state of the front panel lock, the front panel lock can lock the front panel of the vehicle, so that the front panel of the vehicle is fixed on the cab; in the unlocking state of the front panel lock, the front panel lock releases the front panel of the vehicle, so that the front panel of the vehicle can rotate relative to the cab; when the cab turnover device is started, the front panel lock is driven to enable the front panel lock to enter an unlocking state. The cab turnover unlocking system can enable the front panel lock to enter an unlocked state when the cab is turned over.

Description

Cab overturning unlocking system and vehicle

Technical Field

The invention belongs to the technical field of front panel locks, and particularly relates to a cab turnover unlocking system and a vehicle.

Background

The front panel lock is one of more important parts in commercial vehicles, and general commercial vehicles need to realize the filling of windshield washing liquid or the overhaul of other parts on the front wall of a cab by opening the front panel, so that the front panel lock is required to be safe and reliable to realize the opening and closing of the front panel.

The front panel lock in the industry at present is generally a double-lock body structure, and is opened through a guy cable arranged in a cab and an opening handle of the guy cable. As shown in fig. 1 and 2, the conventional front panel lock is composed of a latch pin 1a assembled on a front panel of a truck and a lock body 2a assembled on a fixed seat of a truck face, the latch pin 1a is fixed on the fixed seat of the truck face through a nut 3a, the latch pin 1a is further provided with a spring seat 4a, a compression spring 5a is arranged between the nut 3a and the spring seat 4a, the lock body 2a is provided with an introduction hole 6a, the lock body 2a on two sides of the introduction hole 6a is respectively connected with a driving catch plate 8a and a driven catch plate 9a through pins 7a, the upper parts of the driving catch plate 8a and the driven catch plate 9a are respectively provided with protrusions 10a which are mutually butted and linked, the pins 7a are provided with torsion springs 11a, and the spring seat 4a is provided with a gasket 12 a.

However, the front panel lock is unlocked by only one cable, and if the handle or the cable in the cab fails, the front panel lock is unlocked and fails, and the front panel cannot be opened. In addition, if the front panel lock is not opened in time when the cab is turned, the front panel can interfere with a front bumper in the turning process, and the front panel can be crushed in serious cases. Therefore, a cab turnover mark is arranged on a common commercial vehicle to remind a user that a front panel needs to be opened before the cab is turned over. However, in practice many drivers ignore the flip indicator and cause damage to the front panel.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the technical problem that a front panel is damaged due to the fact that a driver neglects a turning identification in the prior art is solved.

In order to solve the technical problem, in one aspect, an embodiment of the present invention provides a cab turnover unlocking system, including a cab turnover device for turning over a cab, and a front panel lock, where the front panel lock is connected between the cab and a front panel of a vehicle, and the front panel lock has a locked state and an unlocked state;

in the locking state of the front panel lock, the front panel lock can lock the front panel of the vehicle, so that the front panel of the vehicle is fixed on the cab; in the unlocking state of the front panel lock, the front panel lock releases the front panel of the vehicle, so that the front panel of the vehicle can rotate relative to the cab;

when the cab turnover device is started, the front panel lock is driven to enable the front panel lock to enter an unlocking state.

According to the cab turnover unlocking system provided by the embodiment of the invention, the front panel lock is connected between the cab and the front panel of the vehicle. When the cab turnover device is not started, the front panel lock can be unlocked or locked by a driver, so that the vehicle front panel is fixed on the cab or rotates. If the driver is not right before the upset driver's cabin the front panel lock carries out manual unblock, then when driver's cabin turning device starts, the front panel lock will get into the unblock state automatically to avoid front panel and front bumper to take place to interfere, prevent that the front panel from being crushed, effectively prevent to neglect the emergence of the condition that the upset sign caused the front panel to damage because of the driver.

Optionally, the front panel lock comprises a main lock, a first driving device and a second driving device, the main lock comprises a main lock body mounted on the cab and a main lock pin mounted on the front panel of the vehicle, and the main lock body comprises a main lock housing fixedly connected to the cab and a main lock bolt movably connected to the main lock housing;

the second driving device is connected with the cab turnover device, and the first driving device and the second driving device can independently drive the lock tongue of the main lock to move so as to switch the main lock between a locking state and an unlocking state;

in the locking state of the main lock, the main lock bolt locks the main lock pin; in the unlocking state of the main lock, the main lock bolt releases the main lock pin;

and when the cab turnover device is started, the second driving device is driven, so that the main lock enters an unlocking state.

Optionally, the cab turnover device comprises a turnover cylinder, an oil delivery pipe and an oil storage container, wherein the oil delivery pipe is connected between the turnover cylinder and the oil storage container;

the second driving device comprises a hydraulic oil cylinder and an oil pipe, a cylinder barrel of the hydraulic oil cylinder is fixedly connected to the main lock shell, the outer end of a piston rod of the hydraulic oil cylinder is fixedly connected with the main lock bolt, one end of the oil pipe is communicated with an oil cavity of the hydraulic oil cylinder, and the other end of the oil pipe is communicated with the oil conveying pipe.

Optionally, the cab turnover device is provided with an electric control switch;

the second driving device comprises a motor and a motor controller, an output shaft of the motor is connected with the main lock bolt, the motor and the electric control switch are respectively electrically connected with the motor controller, after the cab turnover device is started, the electric control switch sends a starting signal to the motor controller, and the motor controller controls the motor to work so as to drive the main lock bolt to move.

Optionally, the main lock pin includes a main lock screw and a main lock limiting piece, a tail end of the main lock screw is fixedly connected to the front panel, the main lock limiting piece is installed in a middle of the main lock screw, the main lock housing includes a first side plate, and a first through hole is formed in the first side plate;

in the locking state of the main lock, the main lock screw is inserted into the first through hole, the nut of the main lock screw abuts against one side surface, away from the main lock limiting part, of the main lock bolt, and the main lock limiting part abuts against one side surface, away from the main lock bolt, of the first side plate;

in the unlocking state of the main lock, one side surface of the main lock bolt, which deviates from the main lock limiting part, is separated from the nut of the main lock screw, and the nut of the main lock screw can be separated from the first through hole.

Optionally, the main lock locating part includes first base, first elastic component and first gasket, first base is fixed on the main lock screw, first gasket slidable ground cover is established on the main lock screw, first elastic component is connected between first base and the first gasket, first gasket butt is in first curb plate deviates from a side surface of main lock spring bolt.

Optionally, the first driving device includes a handle and a first pull wire, and the first pull wire is fixedly connected between the main lock bolt and the handle.

Optionally, the front panel lock further comprises an auxiliary lock and a linkage device, the auxiliary lock comprises an auxiliary lock body mounted on the cab and an auxiliary lock pin mounted on the front panel of the vehicle, and the auxiliary lock body comprises an auxiliary lock shell fixedly connected to the cab and an auxiliary lock bolt movably connected to the auxiliary lock shell;

the linkage device is connected between the main lock bolt and the auxiliary lock bolt and used for enabling the auxiliary lock bolt to synchronously move along with the main lock bolt so as to enable the auxiliary lock to synchronously switch between a locking state and an unlocking state along with the main lock.

Optionally, the secondary lock pin includes a secondary lock screw and a secondary lock limiting member, the tail end of the secondary lock screw is fixedly connected to the front panel, the secondary lock limiting member is installed in the middle of the secondary lock screw, the secondary lock housing includes a second side plate, and a second through hole is formed in the second side plate;

in the locking state of the auxiliary lock, the auxiliary lock screw is inserted into the second through hole, the nut of the auxiliary lock screw abuts against one side surface, away from the auxiliary lock limiting part, of the auxiliary lock bolt, and the auxiliary lock limiting part abuts against one side surface, away from the auxiliary lock bolt, of the second side plate;

in the unlocking state of the auxiliary lock, one side surface of the auxiliary lock bolt, which deviates from the auxiliary lock limiting part, is separated from the nut of the auxiliary lock screw, and the nut of the auxiliary lock screw can be separated from the second through hole.

Optionally, the secondary lock limiting part comprises a second base, a second elastic piece and a second gasket, the second base is fixed to the secondary lock screw, the second gasket is slidably sleeved on the secondary lock screw, the second elastic piece is connected between the second base and the second gasket, and the second gasket abuts against the second side plate and is away from one side surface of the secondary lock bolt.

Optionally, the linkage includes a second pull wire fixedly connected between the main lock bolt and the secondary lock bolt.

In another aspect, an embodiment of the present invention provides a vehicle, which includes the cab-overturn unlocking system described above.

Drawings

FIG. 1 is a schematic view of a prior art front panel lock;

FIG. 2 is a schematic view of another angle of a prior art front panel lock;

fig. 3 is a schematic view of a cab-rollover unlocking system provided by a first embodiment of the invention;

FIG. 4 is a schematic view of the cab tilting device of FIG. 3;

figure 5 is a schematic view of a primary lock body of a front panel lock provided in accordance with a first embodiment of the present invention;

figure 6 is a schematic view of another angle of the main lock body of the front panel lock according to the first embodiment of the present invention;

figure 7 is a schematic view of a secondary lock body of a front panel lock according to a first embodiment of the present invention;

FIG. 8 is a schematic view of the primary latch bolt of the front panel lock provided in the first embodiment of the present invention.

The reference numerals in the specification are as follows:

100. a front panel lock;

1. a main lock body; 11. a primary lock housing; 111. a first side plate; 1111. a first through hole; 112. a first mounting hole; 113. a second mounting hole; 12. a main lock bolt; 121. a first card slot; 13. a main lock shaft; 14. a primary lock torsion spring;

2. a primary lock pin; 21. a primary lock screw; 22. a primary lock limit; 221. a first base; 222. a first elastic member; 223. a first gasket;

3. a first driving device; 31. a handle; 32. a first pull wire; 321. a first card connector; 322. a second clamping joint;

4. a second driving device; 41. a hydraulic cylinder; 42. an oil pipe;

5. a secondary lock body; 51. a secondary lock housing; 511. a second side plate; 5111. a second through hole; 512. a third mounting hole; 52. a secondary lock bolt; 521. a second card slot; 53. a secondary lock shaft;

6. a linkage device; 61. a second pull wire; 611. a third bayonet joint;

200. a cab tilting device; 201. turning over the oil cylinder; 202. and (7) conveying the oil pipe.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

First embodiment

As shown in fig. 3 to 8, the cab-tilting unlocking system according to the embodiment of the present invention includes a cab-tilting device 200 for tilting a cab, and a front panel lock 100, wherein the front panel lock 100 is connected between the cab and a front panel of a vehicle, and the front panel lock 100 has a locked state and an unlocked state.

In the locked state of the front panel lock 100, the front panel lock 100 locks the vehicle front panel, so that the vehicle front panel is fixed to the cab. In the unlocked state of the front panel lock 100, the front panel lock 100 releases the vehicle front panel so that the vehicle front panel can rotate relative to the cab.

When the cab-tilting device 200 is activated, the front panel lock 100 is driven, and the front panel lock 100 enters an unlocked state.

In the cab turnover unlocking system provided by the embodiment of the invention, the front panel lock 100 is connected between the cab and the front panel of the vehicle. When the cab-tilting device 200 is not activated, the front panel lock 100 can be unlocked or locked by the driver, so that the vehicle front panel is fixed on the cab or rotated. If the driver is not right before the upset driver's cabin the manual unblock is carried out to the front panel lock, then when driver's cabin turning device 200 starts, front panel lock 100 will get into the unblock state automatically to avoid front panel and front bumper to take place to interfere, prevent that the front panel from being crushed, effectively prevent to ignore the emergence of the condition that the upset sign caused the front panel to damage because of the driver. As shown in fig. 5, 6 and 8, a front panel lock 100 according to an embodiment of the present invention includes a main lock, a first driving device 3 and a second driving device 4, wherein the main lock includes a main lock body 1 mounted on a cab and a main lock pin 2 mounted on a front panel of a vehicle, and the main lock body 1 includes a main lock housing 11 fixedly connected to the cab and a main lock tongue 12 movably connected to the main lock housing 11. The second driving device 4 is connected to the cab tilting device 200, and the first driving device 3 and the second driving device 4 can independently drive the main lock bolt 12 to move, so that the main lock is switched between a locked state and an unlocked state.

When the main lock is switched to the locked state, the front panel lock 100 is switched to the locked state; when the main lock is switched to the unlocked state, the front panel lock 100 is switched to the unlocked state.

In the locking state of the main lock, the main lock bolt 12 locks the main lock pin 2, so that the main lock is locked, and a front panel of the vehicle is fixed relative to a cab. In the unlocking state of the main lock, the main lock bolt 12 releases the main lock pin 2, and the main lock pin 2 can be separated from the main lock body 1, so that a front panel of the vehicle can rotate relative to a cab.

When the cab turnover device 200 is started, the second driving device is driven, so that the main lock enters an unlocking state.

In the front panel lock 100 according to the embodiment of the present invention, the first driving device 3 and the second driving device 4 are provided in the front panel lock 100, and the second driving device 4 is connected to the cab tilting device 200, so that the second driving device 4 and the cab tilting device 200 are linked. The main lock bolt 12 is independently driven to move by the first driving device 3 or the second driving device 4, so that the main lock is switched between a locking state and an unlocking state. When first drive arrangement 3 became invalid, the accessible with second drive arrangement 4 of driver's cabin turning device 200 linkage was right the main lock unblock makes front panel lock 100 can open automatically, effectively prevents to cause the condition of front panel damage because of not opening the front panel when the upset driver's cabin.

In one embodiment, the main lock housing 11 may be fixedly attached to the front of the cab.

As shown in fig. 3 and 4, the cab-tilting device 200 includes a tilting cylinder 201. The second driving device 4 comprises a hydraulic oil cylinder 41 and an oil pipe 42, the cab turnover device 200 comprises a turnover oil cylinder 201, an oil delivery pipe 202 and an oil storage container, the oil delivery pipe 202 is connected between the turnover oil cylinder 201 and the oil storage container, a cylinder barrel of the hydraulic oil cylinder 41 is fixedly connected to the main lock shell 11, the outer end of a piston rod of the hydraulic oil cylinder 41 is fixedly connected with the main lock bolt 12, one end of the oil pipe 42 is communicated with an oil cavity of the hydraulic oil cylinder 41, and the other end of the oil pipe 42 is communicated with the oil delivery pipe 202, for example, through a flow dividing valve. Thus, the oil reservoir can supply the hydraulic oil to the tumble cylinder 201 and the hydraulic cylinder 41 at the same time.

When the cab is overturned, the oil storage container provides hydraulic oil for the overturning oil cylinder 201 through the oil conveying pipe 202, the oil pipe 42 is communicated with the oil conveying pipe 202, when the oil conveying pipe 202 is filled with the hydraulic oil, the hydraulic oil is filled into the oil pipe 42, and when the oil pipe 42 is filled with the hydraulic oil, the hydraulic oil cylinder 41 integrated on the main lock body 1 can unlock the main lock, so that the front panel can be overturned. Since the oil pressure required by the hydraulic oil cylinder 41 is much lower than the oil pressure required by the cab-tilting cylinder 201 to jack up the cab, the front panel lock 100 is first opened by the hydraulic oil when the cab is not yet jacked up, and logic control is realized in which the lock is opened before and the cab is tilted after. Thus, there is no fear that the front panel is not unlocked when the cab is turned over. Can be so that when the driver's cabin just overturned, front panel lock 100 is in the unblock state, along with the increase of rotation angle, the front panel can be opened to the biggest automatically because of the effect of gravity effect and/or other parts down, can effectively prevent to crack the problem because of not opening the front panel that the front panel just overturns the driver's cabin and lead to.

As shown in fig. 5 and 6, the main lock bolt 12 is rotatably connected to the main lock housing 11, and both the first driving device 3 and the second driving device 4 can independently drive the main lock bolt 12 to rotate, so that the main lock is switched between a locked state and an unlocked state.

As shown in fig. 5 and 6, the main lock body 1 further comprises a main lock rotating shaft 13 and a main lock torsion spring 14, the main lock rotating shaft 13 is installed on the main lock casing 11, the main lock bolt 12 passes through the main lock rotating shaft 13 is rotatably connected on the main lock casing 11, the main lock torsion spring 14 is sleeved on the main lock rotating shaft 13, one end of the main lock torsion spring 14 is supported on the main lock casing 11, and the other end of the main lock torsion spring 14 is supported on the main lock bolt 12.

The main lock bolt 12 is rotatably connected with the main lock shell 11 by arranging the main lock rotating shaft 13. Through setting up main lock torsional spring 14 to make the one end of main lock torsional spring 14 supports on the main casing 11 that locks, the other end of main lock torsional spring 14 supports on the main lock spring bolt 12, in order after the main lock spring bolt 12 atress rotates (realizes the unblock of main lock), for the restoring force that resets of main lock spring bolt 12 provides, makes the main lock spring bolt 12 can reply initial position (when the main lock is in the locking state, the position that main lock spring bolt 12 located).

As shown in fig. 8, the main lock pin 2 includes a main lock screw 21 and a main lock limiting member 22, a tail end of the main lock screw 21 is fixedly connected to the front panel, the main lock limiting member 22 is installed in a middle portion of the main lock screw 21, the main lock housing 11 includes a first side plate 111, and the first side plate 111 is provided with a first through hole 1111.

The locking state of master lock, master lock screw 21 pegs graft in first through-hole 1111, the nut butt of master lock screw 21 is in master lock spring bolt 12 deviates from a side surface of master lock locating part 22, master lock locating part 22 butt is in first curb plate 111 deviates from a side surface of master lock spring bolt 12 to realize master lock body 1 with the locking of master lock screw 21, and then make the master lock is in the locking state, makes the front panel fixed relative to the driver's cabin.

In the unlocked state of the main lock, a side surface of the main lock bolt 12 facing away from the main lock limit piece 22 is separated from the nut of the main lock screw 21, and the nut of the main lock screw 21 can be disengaged from the first through hole 1111, so that the main lock body 1 can be separated from the main lock pin 2, and the front panel can rotate relative to the front wall.

As shown in fig. 8, the main lock limiting member 22 includes a first base 221, a first elastic member 222 and a first gasket 223, the first base 221 is fixed on the main lock screw 21, the first gasket 223 is slidably sleeved on the main lock screw 21, the first elastic member 222 is connected between the first base 221 and the first gasket 223, and the first gasket 223 abuts against a side surface of the first side plate 111 that faces away from the main lock bolt 12.

When the main lock body 1 locks the main lock screw 21, since the first gasket 223 is slidably sleeved on the main lock screw 21, and the first elastic member 222 is connected between the first base 221 and the first gasket 223, the first gasket 223 is abutted against a side surface of the first side plate 111 deviating from the main lock bolt 12, so that the main lock limiting member 22 is elastically supported between the front panel and the main lock shell 11, and the front panel is prevented from shaking when being fixed in a front wall, thereby affecting the use of the front panel.

As shown in fig. 3 and 6, the first driving device 3 includes a handle 31 and a first pulling wire 32, and the first pulling wire 32 is fixedly connected between the main lock bolt 12 and the handle 31.

By operating the handle 31, the first pull wire 32 can pull the main lock bolt 12 to move, so as to unlock the main lock.

As shown in fig. 5 and 6, a first mounting hole 112 is formed in the main lock housing 11, a first engaging groove 121 is formed in the main lock bolt 12, the first pulling wire 32 is slidably connected in the first mounting hole 112, a first engaging head 321 and a second engaging head 322 are arranged at one end of the first pulling wire 32, the first engaging head 321 and the second engaging head 322 are relatively engaged with two ends of the first engaging groove 121, and the other end of the first pulling wire 32 is connected to the handle 31.

The first clamping head 321 and the second clamping head 322 are clamped at two ends of the first clamping groove 121 relatively, and when the handle 31 is operated to pull the first pull wire 32, the second clamping head 322 on the first pull wire 32 drives the main lock bolt 12 to move, so that the main lock is unlocked. When the handle 31 is released, the main lock bolt 12 can return to the original position under the influence of the main lock torsion spring 14.

As shown in fig. 3 and 7, the front panel lock 100 further includes a sub-lock including a sub-lock body 5 mounted on the cab and a sub-lock bolt mounted on the front panel of the vehicle, and a linkage 6, wherein the sub-lock body 5 includes a sub-lock housing 51 fixedly connected to the cab and a sub-lock bolt 52 movably connected to the sub-lock housing 51.

The linkage device 6 is connected between the main lock bolt 12 and the auxiliary lock bolt 52, and the linkage device 6 is used for enabling the auxiliary lock bolt 52 to synchronously move along with the main lock bolt 12, so that the auxiliary lock is synchronously switched between a locking state and an unlocking state along with the main lock.

The linkage of the auxiliary lock bolt 52 and the main lock bolt 12 is realized by connecting the linkage device 6 between the main lock bolt 12 and the auxiliary lock bolt 52. When the first driving device 3 or the second driving device 4 independently drives the main lock bolt 12 to move, the auxiliary lock bolt 52 will move under the action of the linkage device 6, so that the auxiliary lock is synchronously switched to a locked state along with the main lock, or the auxiliary lock is synchronously switched to an unlocked state along with the main lock.

As shown in fig. 7, the sub-lock latch 52 is rotatably coupled to the sub-lock housing 51. Under the driving of the linkage device 6, the auxiliary lock bolt 52 can rotate synchronously with the main lock bolt 12, so that the auxiliary lock can be synchronously switched between a locking state and an unlocking state along with the main lock.

As shown in fig. 7, the auxiliary lock body 5 further includes an auxiliary lock rotating shaft 53 and an auxiliary lock torsion spring, the auxiliary lock rotating shaft 53 is installed on the auxiliary lock casing 51, the auxiliary lock bolt 52 is connected on the auxiliary lock casing 51 through the auxiliary lock rotating shaft 53 in a rotating manner, the auxiliary lock torsion spring is sleeved on the auxiliary lock rotating shaft 53, one end of the auxiliary lock torsion spring is supported on the auxiliary lock casing 51, and the other end of the auxiliary lock torsion spring is supported on the auxiliary lock bolt 52.

The auxiliary lock bolt 52 is rotatably connected with the auxiliary lock shell 51 by arranging the auxiliary lock rotating shaft 53. Through setting up vice lock torsional spring to make the one end of vice lock torsional spring is supported on vice lock casing 51, the other end of vice lock torsional spring is supported on vice lock spring bolt 52, with vice lock spring bolt 52 atress rotates (realizes the unblock of vice lock), for the restoring force is provided in the reseing of vice lock spring bolt 52, makes vice lock spring bolt 52 can reply to initial position (when vice lock is in the locking state, the position that vice lock spring bolt 52 located).

The structure of the auxiliary lock pin and the structure of the main lock pin 2. The auxiliary lock pin comprises an auxiliary lock screw and an auxiliary lock limiting part, the tail end of the auxiliary lock screw is fixedly connected to the front panel, the auxiliary lock limiting part is installed in the middle of the auxiliary lock screw, the auxiliary lock shell 51 comprises a second side plate 511, and a second through hole 5111 is formed in the second side plate 511.

In the locking state of the secondary lock, the secondary lock screw is inserted into the second through hole 5111, a nut of the secondary lock screw abuts against one side surface of the secondary lock bolt 52, which is far away from the secondary lock limiting part, and the secondary lock limiting part abuts against one side surface of the second side plate 511, which is far away from the secondary lock bolt 52, so as to lock the secondary lock body 5 and the secondary lock screw, so that the secondary lock is in the locking state, and the front panel is fixed in a front wall relatively.

In the unlocked state of the secondary lock, a side surface of the secondary lock bolt 52 facing away from the secondary lock limiting member is separated from a nut of the secondary lock screw, and the nut of the secondary lock screw can be disengaged from the second through hole 5111, so that the secondary lock body 5 can be separated from the secondary lock pin, and the front panel can rotate relative to the front wall.

The auxiliary lock limiting part comprises a second base, a second elastic piece and a second gasket, the second base is fixed to the auxiliary lock screw, the second gasket is slidably sleeved on the auxiliary lock screw, the second elastic piece is connected between the second base and the second gasket, and the second gasket abuts against the second side plate 511 deviating from one side surface of the auxiliary lock bolt 52.

When the secondary lock body 5 is right when the secondary lock screw is locked, because the second gasket slidable ground cover is established on the secondary lock screw, just the second elastic component is connected between second base and the second gasket, through with the second gasket butt is in second curb plate 511 deviates from a side surface of secondary lock spring bolt 52, can make secondary lock locating part elastic support is between front panel and secondary lock casing 51 to avoid the front panel to fix and take place to rock when enclosing before, thereby influence the use of front panel.

As shown in fig. 3 and 7, the linkage 6 includes a second wire 61, and the second wire 61 is fixedly connected between the main lock tongue 12 and the auxiliary lock tongue 52.

Because the second pull wire 61 is fixedly connected between the main lock bolt 12 and the auxiliary lock bolt 52, when the main lock bolt 12 moves, the second pull wire 61 drives the auxiliary lock bolt 52 to move synchronously with the main lock bolt 12, so as to unlock the auxiliary lock.

In an embodiment, as shown in fig. 5 to 7, a second mounting hole 113 is further disposed on the main lock housing 11, a third mounting hole 512 is disposed on the auxiliary lock housing 51, one end of the second pull wire 61 is fixedly connected to the first pull wire 32, and the other end of the second pull wire 61 passes through the second mounting hole 113 and the third mounting hole 512 to be connected to the auxiliary lock tongue 52, so as to drive the auxiliary lock tongue 52 to move synchronously with the main lock tongue 12.

In an embodiment, as shown in fig. 5 to 7, a second engaging groove 521 is disposed on the secondary lock tongue 52, a third engaging head 611 is disposed at the other end of the second pull wire 61, and the third engaging head 611 is engaged with the second engaging groove 521, so that the secondary lock tongue 52 moves synchronously with the primary lock tongue 12.

Second embodiment

The cab turning unlocking system provided by the second embodiment is different from the cab turning unlocking system provided by the first embodiment in that the cab turning device is provided with an electric control switch, the second driving device of the front panel lock comprises a motor and a motor controller, an output shaft of the motor is connected with a lock tongue of the main lock, and the motor and the electric control switch are respectively and electrically connected with the motor controller.

After the cab turnover device is started, the electric control switch sends a starting signal to the motor controller, the motor controller controls the motor to work to drive the main lock bolt to move, so that the motor and the turnover oil cylinder of the cab turnover device work simultaneously, or the motor works before the turnover oil cylinder of the cab turnover device to drive the main lock bolt to move, so that the locking of the main lock bolt is released, the front panel lock enters an unlocking state, the front panel can still turn over when the first driving device fails, and the damage of the front panel caused by the fact that a driver does not manually unlock the front panel is avoided.

Third embodiment

Different from the cab turning unlocking system provided by the first embodiment, in the cab turning unlocking system provided by the third embodiment, the structure of the second driving device of the front panel lock is the same as that of the first driving device, and both the second driving device and the first driving device are stay cables.

In the third embodiment, a handle of a cable of the second driving device is fixedly connected with a reversing handle of a hand pump of a cab turnover device, and a stay wire of the second driving device is fixedly connected between the main lock bolt and the handle of the second driving device.

Fourth embodiment

A fourth embodiment of the invention provides a vehicle including the cab-rollover unlocking system of the above embodiment or including the front panel lock of the above embodiment.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A cab turnover unlocking system is characterized by comprising a cab turnover device for turning over a cab and a front panel lock, wherein the front panel lock is connected between the cab and a front panel of a vehicle and has a locking state and an unlocking state;

in the locking state of the front panel lock, the front panel lock locks the front panel of the vehicle, so that the front panel of the vehicle is fixed on the cab; in the unlocking state of the front panel lock, the front panel lock releases the front panel of the vehicle, so that the front panel of the vehicle can rotate relative to the cab;

when the cab turnover device is started, the front panel lock is driven to enter an unlocking state;

the front panel lock comprises a main lock, a first driving device and a second driving device, the main lock comprises a main lock body arranged on a cab and a main lock pin arranged on a front panel of a vehicle, and the main lock body comprises a main lock shell fixedly connected to the cab and a main lock bolt movably connected to the main lock shell;

the first driving device and the second driving device can independently drive the main lock bolt to move so as to switch the main lock between a locking state and an unlocking state;

2. The cab turnover unlocking system of claim 1, wherein the cab turnover device includes a turnover cylinder, an oil delivery pipe and an oil storage container, the oil delivery pipe being connected between the turnover cylinder and the oil storage container;

3. The cab rollover unlocking system according to claim 1, wherein the cab rollover device is provided with an electronic control switch;

4. The cab turnover unlocking system of claim 1, wherein the main lock pin comprises a main lock screw and a main lock limiting member, the tail end of the main lock screw is fixedly connected to the front panel, the main lock limiting member is installed in the middle of the main lock screw, the main lock housing comprises a first side plate, and the first side plate is provided with a first through hole;

5. The cab turnover unlocking system according to claim 4, wherein the main lock limiting part comprises a first base, a first elastic piece and a first gasket, the first base is fixed on the main lock screw, the first gasket is slidably sleeved on the main lock screw, the first elastic piece is connected between the first base and the first gasket, and the first gasket abuts against a side surface of the first side plate, which is far away from the main lock bolt.

6. The cab rollover unlocking system of claim 1 wherein the first actuation means includes a handle and a first pull wire fixedly connected between the main latch bolt and the handle.

7. The cab rollover unlocking system according to claim 1, wherein the front panel lock further comprises a secondary lock and a linkage, the secondary lock comprises a secondary lock body mounted on the cab and a secondary lock pin mounted on the front panel of the vehicle, the secondary lock body comprises a secondary lock housing fixedly connected to the cab and a secondary lock tongue movably connected to the secondary lock housing;

8. The cab turnover unlocking system of claim 7, wherein the secondary lock pin comprises a secondary lock screw and a secondary lock limiting member, the tail end of the secondary lock screw is fixedly connected to the front panel, the secondary lock limiting member is installed in the middle of the secondary lock screw, the secondary lock housing comprises a second side plate, and a second through hole is formed in the second side plate;

9. The cab turnover unlocking system according to claim 8, wherein the secondary lock limiting member includes a second base, a second elastic member, and a second gasket, the second base is fixed to the secondary lock screw, the second gasket is slidably fitted to the secondary lock screw, the second elastic member is connected between the second base and the second gasket, and the second gasket abuts against a side surface of the second side plate away from the secondary lock bolt.

10. The cab tumble unlocking system of claim 7 wherein the linkage includes a second pull wire fixedly connected between the main lock tongue and the secondary lock tongue.

11. A vehicle comprising a cab-rollover unlocking system as claimed in any one of claims 1 to 10.