CN115503457B - Heavy-duty truck battery box locking device assembly - Google Patents
Heavy-duty truck battery box locking device assembly Download PDFInfo
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- CN115503457B CN115503457B CN202211300780.2A CN202211300780A CN115503457B CN 115503457 B CN115503457 B CN 115503457B CN 202211300780 A CN202211300780 A CN 202211300780A CN 115503457 B CN115503457 B CN 115503457B
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- rod
- lock tongue
- locking
- locking device
- guide shaft
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- 230000007246 mechanism Effects 0.000 claims description 25
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0455—Removal or replacement of the energy storages
- B60K2001/0466—Removal or replacement of the energy storages from above
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a heavy-duty battery box locking device assembly, which comprises a battery bracket, a locking device and a flexible backing plate, wherein the battery bracket is fixed on an electric heavy-duty card, the flexible backing plate is fixed above an outer frame of the battery box, the locking device is arranged on the inner side of the outer frame of the battery bracket and comprises a lock tongue, a cylinder, a locking push rod, a bottom plate and other parts, the lock tongue is of a rotating shaft structure, is turned over under the driving of the cylinder and is pressed with the backing plate to lock the battery box, and the surface of the locking push rod is provided with ratchets which are meshed with the ratchets at the back of the lock tongue to prevent the lock tongue from backing. The device has the advantages that the spring bolt overturning and ratchet meshing actions can be realized by one cylinder, so that the cost is saved; the cylinder is not required to supply air all the time, and energy is saved.
Description
Technical Field
The invention belongs to the technical field of heavy-duty truck power conversion, and particularly relates to a locking device assembly of an electric heavy-duty truck power conversion battery box.
Background
In the current electric heavy truck, a battery compartment is replaced by a battery replacement mode so as to quickly supplement battery energy. The power conversion is also divided into a plurality of modes, and the top conversion is mainly adopted at present, and the specific operation steps are as follows: firstly, a truck drives into a charging station in a special power exchange station, a lifting device lifts a battery compartment with insufficient power away, then the battery compartment with full power is lifted onto the truck, and then a locking device is needed to fix the battery compartment with a bracket below.
The existing electric heavy-duty truck battery compartment locking device is various in types, wherein after the locking device is locked, self-locking can be performed so that a motor in the locking device does not need to continuously supply power, and the electric heavy-duty truck battery compartment locking device is a common technical means in the locking device. An assembly comprising a locking mechanism is disclosed in the patent with publication number CN 217022258U, wherein a common cylinder is used for directly pushing a turnover part through a lever principle to form locking with a battery compartment, and a locking mechanism is further arranged in the locking mechanism to realize a self-locking function. Specifically, as shown in fig. 3 and paragraphs [ 0034 ] and [ 0037 ] of the specification, a pulling force is applied to the tilting mechanism by the anti-disengaging mechanism to prevent the tilting mechanism from loosening. Through the setting of anticreep mechanism for tilting mechanism can be when driving piece 210 can't provide thrust for tilting mechanism's clamping jaw 310, remains throughout to the state of compressing tightly of battery box inner wall, and has specifically adopted: after the clamping jaw 310 of the turnover mechanism presses the inner wall of the battery box, the elastic piece 420 is in a stretched state, and at this time, the elastic piece 420 can apply a force for resisting the anticlockwise rotation of the clamping jaw 310 to the clamping jaw 310, so that the clamping jaw 310 can firmly press the inner wall of the battery box, and the locking mechanism always maintains a locking state.
The above-described prior art anti-disengaging mechanism has drawbacks, although it can achieve a self-locking function. The anti-falling mechanism is that the elastic piece 420 is adopted to resist the anti-anticlockwise rotation of the clamping jaw 310 in a stretching state, namely when the clamping jaw 310 is turned over to a locking position, the motor also needs to overcome the resistance caused by the stretching of the elastic piece 420, so that the power consumption of the motor is increased; meanwhile, the time that the battery box is in the locking state on the truck is far longer than that in the unlocking state, so that the elastic piece 420 is always in the stretching state, plastic deformation is easy to occur, and failure situations such as fracture and the like are seriously generated.
A new solution is needed to solve the above problems.
Disclosure of Invention
The invention aims to: the patent provides a heavy truck trades battery box locking means assembly to solve the problem that the elastic component is inefficacy easily and causes the resistance to the motor among the self-locking mechanism to locking mechanism that exists among the prior art.
The technical scheme is as follows: the invention adopts the following technical scheme:
a locking device assembly of a heavy-duty battery box comprises a battery bracket and a plurality of locking devices arranged on the battery bracket; the locking device comprises a bottom plate, a driver arranged on the bottom plate, a bolt bracket arranged on the bottom plate, a bolt rotatably arranged on the bolt bracket, a locking rod positioned at the back of the bolt and an intermediate mechanism matched with the output of the driver; the lock tongue is provided with a slot; the bottom of the anti-pushing rod is hinged to the bottom plate, the anti-pushing rod rotates between a locking position and an opening position, when the anti-pushing rod is in the locking position, the anti-pushing rod abuts against the back of the lock tongue and forms an interlocking stop, and when the anti-pushing rod is in the opening position, the anti-pushing rod is far away from the back of the lock tongue and is mutually unlocked with the lock tongue;
the intermediate mechanism comprises a guide shaft penetrating through the slot, a first stop lever matched with the stop rod and a connecting piece for connecting the first stop lever and the guide shaft; the outer diameter of the guide shaft is smaller than the length of the slot, when the guide shaft is driven by the driver to move in the slot and move towards the direction of the thrust rod, the guide shaft drives the first stop rod to push the thrust rod towards the direction away from the back of the lock tongue, so that the thrust rod and the lock tongue are unlocked mutually until the guide shaft reaches and abuts against the end part of the slot, and then the lock tongue is pushed to rotate towards the back direction.
Further, the connecting piece comprises a sleeve connected with the upper end of the first stop lever, a straight rod positioned at the outer end of the sleeve and a shaft sleeve positioned at the outer side of the guide shaft, the shaft sleeve is provided with a through hole, the straight rod penetrates through the through hole and slides in the through hole, the side surface of the lock tongue is provided with a rod shaft, and the sleeve is sleeved on the rod shaft and rotates relative to the rod shaft; the dial shaft is arranged in parallel with the guide shaft and is positioned above the guide shaft.
Further, the first stop lever is an outwards convex arc-shaped lever, and the outer side surface of the stop lever is provided with a first stop lever side which outwards protrudes and is matched with the stop lever; when the locking rod is at the locking position, the first stop rod is positioned below the side stop rod and is not in contact with the side stop rod, when the guide shaft is driven by the driver to move in the slot and move towards the direction of the locking rod, the locking bolt is locked due to the fact that the locking rod is interlocked with the locking bolt, the shaft sleeve moves relative to the straight rod and drives the sleeve to rotate, the sleeve rotates and then drives the lower end of the first stop rod to lift up the side stop rod, and the side stop rod is far away from the back of the locking bolt and is unlocked from the locking bolt.
Furthermore, the surfaces of the back of the lock tongue and the thrust rod facing the lock tongue are both provided with ratchet structures, and when the thrust rod is at the locking position, the thrust rod and the back of the lock tongue are mutually locked through the ratchet structures.
Further, a spring is connected between the lower end of the push stopping rod and the bottom plate to serve as a reset mechanism.
Further, the driver is a cylinder.
Further, the battery bracket comprises an outer frame body, a plurality of locking devices are arranged on the outer frame body, and a mounting bottom plate of each locking device is arranged on the inner side of the outer frame body.
The beneficial effects are that: compared with the prior art, the locking structure is not locked by the elasticity of the elastic piece and is not easy to damage by arranging the locking rod to be abutted against the back of the lock tongue and form mutual locking. Meanwhile, when the locking structure is unlocked, the locking rod is driven to be lifted firstly to unlock, the resistance applied during unlocking is small, and the locking rod and the lock tongue can be driven to turn over successively by only one cylinder, so that the number of driving parts is reduced and the cost is saved on the basis of realizing the locking function. The invention has a reliable mechanical locking mechanism, and the power of the driver can be closed after the driver is locked, so that the electric power is saved, and the cruising ability of the electric heavy truck is improved.
Drawings
Fig. 1 is a schematic structural diagram of a locking device assembly of a heavy-duty battery box according to an embodiment of the present invention;
FIG. 2 is an overall assembly view of an embodiment of the present invention in a locked state;
fig. 3 is a schematic structural diagram of a locking mechanism assembly of a heavy-duty battery box locking device according to an embodiment of the present invention.
FIG. 4 is an exploded view of the structure of the transmission member of the embodiment of the present invention;
FIG. 5 is a schematic diagram of two working states of the embodiment of the present invention, wherein (a) is a locked state and (b) is an unlocked state;
fig. 6 is a schematic cross-sectional view of a flexible backing plate of a locking device assembly for a heavy-duty battery box according to an embodiment of the present invention.
In the figure:
1. a battery bracket;
2. a quick-change connector;
3. a locking mechanism; 31. a bottom plate; 32. a bolt; 33. a cylinder;
34. a push stop rod; 341. a push rod stopping side stop lever;
35. a transmission member; 351. a shaft end nut;
352. a deflector rod; 3521. a first stop lever; 3522. a sleeve; 3523. straight rod
353. A shaft sleeve; 354. a guide shaft; 355. a cylinder push rod; 356. a cover plate; 357. cover plate screws;
358. a dial shaft; 359. the lock tongue is slotted; 36. a thrust rod spring;
4. a battery box;
5. a flexible backing plate; 51. a rubber pad; 52. a backing plate outer frame; 53. and a supporting block.
Detailed Description
The present invention is described in detail below with reference to specific embodiments, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The examples are intended to aid those skilled in the art in further understanding the present invention and are not intended to limit the invention in any way. It should be noted that, for those skilled in the art, several improvements or modifications can be made to the present invention without departing from the concept of the present invention, and still fall within the protection scope of the present invention.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
The embodiment of the invention provides a locking device assembly of a heavy-duty truck battery box, which is safe, reliable, simple in structure and low in cost.
Referring to fig. 1, the locking devices of the heavy-duty battery box for battery replacement of the present invention are distributed at intervals on the outer side of the battery bracket 1, and at least four, and at most ten locking devices are arranged in consideration of reliable locking and space requirements of the battery box, and are not limited to the six sets of locking device arrangement schemes shown in this embodiment.
Referring to fig. 2, a flexible backing plate 5 is fixed to the outer frame of the battery case 4, and a rubber pad is placed under the support block. After the spring bolt is pressed to the supporting shoe, because the rubber pad of supporting shoe below possesses flexibility, so the supporting shoe can extrude the rubber pad and carry out one section slight displacement, makes the height, the slope of supporting inclined plane all adapt to with the spring bolt to realize locking face's inseparable laminating, realize the integration lock solid, avoid leading to the battery box to rock because of the existence of clearance, the security is higher.
Referring to fig. 3, the locking device 3 includes a base plate 31, a lock tongue 32, a cylinder 33, a thrust rod 34, and a transmission member 35. All parts of the locking device 3 are fixed to the bottom plate 31, and the bottom plate 31 is fixed to the battery bracket 1 by bolts. The bottom plate 31 is formed by welding steel plates and is provided with a side reinforcing rib structure, so that the safety and reliability are realized. The lock tongue 32 is a rotating shaft structure, the rotating shaft of which is arranged on the two side supports of the bottom plate 31 and is axially fixed through a snap spring. The back of the lock tongue 32 and the surface of the thrust rod 34 are both provided with a plurality of ratchet structures, and when the thrust rod 34 is turned to the front to contact with the lock tongue 32, the ratchet structures can prevent the lock tongue 32 from backing, so as to play a locking role and ensure safety. In an alternative manner, a stop rod spring 36 may be disposed between the lower end of the stop rod 34 and the bottom plate, and the stop rod 34 provides a return by the tension of the spring 36, under which the side stop rod 341 of the stop rod 34 is always pressed against the outer side of the first stop rod 3521 of the shift rod 352. The first stop lever 3521 is an outwardly convex arc-shaped lever. The cylinder 33 is mounted on the bottom plate 31 through a rotating shaft, and a round hole is formed in a push rod 355 at the front end of the cylinder. The cylinder push rod 355 is sleeved on the guide shaft 354 through a shaft hole and can rotate around the guide shaft 354. During the forward pushing of the piston rod of the cylinder 33, the push rod 355 transmits the pushing force to the guide shaft 354, and the guide shaft 354 transmits the force to the lock tongue 32 through the sliding groove. Thereby driving the rotation of the latch tongue 32. In the process that the air cylinder 33 drives the guide shaft 354 to move, the shaft sleeve 353 sleeved at the tail end of the guide shaft 354 also moves along with the guide shaft 354, and the shaft sleeve 353 can rotate around the guide shaft 354, so that the guide shaft 354 can drive the deflector 352 to rotate around the deflector shaft 358 through the shaft sleeve 353, and further the side deflector 341 of the deflector rod is deflected through the first deflector rod 3521, so that the forward and backward rotation of the deflector rod is realized. After the locking rod 34 fully locks the lock tongue 32, the cylinder power can be turned off, the battery power is saved, and the cruising ability of the truck is improved.
For the locking mechanism 3, the overturning actions of the two parts, namely the lock tongue and the thrust rod, can be completed by one cylinder, and are mainly realized by the transmission part 35. Referring to fig. 4, the transmission part 35 includes a shaft end nut 351, a shift lever 352, a first bar 3521, a sleeve 3522, a straight lever 3523, a shaft sleeve 353, a guide shaft 354, a cylinder push rod 355, a cover 356, a cover screw 357, a shift lever shaft 358, a lock tongue slot 359, and the like. The lever shaft 358 and the slot 359 are structures on the lock tongue 32, and are integrated with the lock tongue 32. The slot 359 is a non-penetrating slot, and the depth of the slot 359 is just enough to receive the cylindrical section of the stub of the guide shaft 354. The shift lever 352 is formed by welding a straight lever 3523, a sleeve 3522 and a first stop lever 3521, wherein the straight lever 3523 is sleeved in a hole of the shaft sleeve 353, the sleeve 3522 is sleeved on the shift lever rotating shaft 358, and the first stop lever 3521 is in contact with the stop lever side stop lever 341. After the deflector rod 352 is sleeved on the deflector rod rotating shaft 358, the deflector rod 352 is axially fixed by the shaft end nut 351, so as to prevent the deflector rod 352 from falling off. The guide shaft 354 is of a two-section cylindrical structure, and one thick end of the guide shaft 354 is placed in the groove 359 and fixed through the cover plate 356, so that the guide shaft 354 can slide in the groove 359 and cannot fall out. The round hole of cylinder front end push rod 355 overlaps on the guide shaft 354 for transmit the cylinder power to guide shaft 354 and spring bolt 32.
Referring to fig. 5, (a) and (b) are the locked and unlocked states of the device, respectively. When the device needs to lock the battery box, the cylinder piston rod can be pushed forward, and then the guide shaft 354 is driven to slide forward in the groove 359 through the push rod 355. When the guide shaft 354 slides to the front end of the slot 359, the locking bolt 32 is driven to move together, so that the locking bolt 32 turns forward until being tightly pressed with the supporting block 53, thereby realizing the locking function. After the locking is completed, the shift lever 352 has moved to a forward position, and no constraint is imposed on the side bar 341 of the push-stop lever, so that the push-stop lever 34 will be tightly attached to the back of the lock tongue 32 under the tension of the spring 36, and mechanical locking is achieved by the interengagement of the ratchet teeth, and the locked state is as shown in fig. 5 (a). When the device needs to be unlocked, the piston rod of the cylinder 33 drives the guide shaft 354 to slide backwards in the slot 359. When the guide shaft 354 slides backward in the slot 359, the lock tongue 32 does not act and is still in a locking state, and the deflector 352 is driven to rotate around the shaft 358, so that the first stop rod 3521 contacts the side stop rod 341 of the stopper rod 34 and continuously moves backward against the side stop rod 341, and then drives the stopper rod 34 to turn backward, so that the pawls of the lock tongue 32 and the stopper rod 34 are separated from each other, that is, release of mechanical locking is realized, and the lock tongue is allowed to turn backward and back. When the guide shaft 354 slides to the rear end of the slot 359, the locking bolt 32 is driven to turn backward. Because both pawls have been released at this time, the tongue 32 will turn back under the pull of the cylinder 33 and the guide shaft 354, releasing the fastening of the battery box supporting block 53, and the state shown in fig. 5 (b) is immediately after unlocking in place.
Referring to fig. 6, the flexible mat 5 includes a rubber pad 51, a mat outer frame 52, and a support block 53. When the lock tongue 32 presses down and locks the supporting block 53, the rubber block 51 is compressed and deformed, so that the supporting block 53 is allowed to have a certain position adjustment amount, and the supporting block is used for adapting to the specific position of the compression joint surface of the lock tongue 32, realizing close fitting, and avoiding the battery box shaking caused by gaps.
The specific working steps of the embodiment of the invention are as follows: when the truck is stopped at the power exchange station, the driver presses the battery box unlocking button, the electromagnetic valve acts at the moment, and the air pump starts to supply air to the rod cavity of the air cylinder 33, so that the air cylinder is retracted. At the beginning of retraction of the cylinder push rod 355, the guide shaft 354 slides in the slot 359, and the first stop rod 3521 rotates the stop push rod 34 backwards against the pawl to disengage the pawl, so that the locking bolt 32 is released. When the guide shaft 354 moves to the rear end of the slot 359, the lock tongue 32 is pulled to turn backwards under the drive of the air cylinder 33, so that the battery box is unlocked, and the hoisting and replacing operation can be performed.
When the battery box is replaced, the driver operates the "battery box lock" button. At this time, the cylinder 33 pushes forward, the guide shaft 354 slides forward in the slot 359, the shift lever 352 rotates around the shaft 358, the first stop lever 3521 gradually moves forward until it is separated from the stop lever side stop lever 341, and then the stop lever 34 is attached to the back of the lock tongue 32 under the tension of the spring 36. The ratchet of the push rod 34 and the tongue 32 is thus one-way stop, allowing the tongue 32 to rotate forward. When the guide shaft 354 slides forward to the forefront end of the slot 359, the latch bolt 32 is driven by the cylinder 33 to turn forward until the latch bolt is tightly pressed on the upper surface of the supporting block 53, thus completing the locking operation. After the locking is completed, the push rod 34 is always attached to the back of the lock tongue 32, and the lock tongue 32 is prevented from retreating through one-way ratchet engagement, so that the mechanical locking guarantee of the device is realized. After the locking is finished, the air pump power supply can be turned off, the battery power is saved, and the duration of the truck is increased.
The device provided by the invention has the advantages of simple structure, higher safety, no need of an air pump to work all the time, energy conservation and higher cruising ability of the truck, and is provided with a mechanical locking guarantee of a ratchet structure. In addition, the locking device is not influenced by processing and assembling errors of parts such as the battery box frame, the supporting block, the lock tongue and the like, a certain position error exists on the joint surface, the deviation is compensated by the rubber pad, the supporting block can be better attached to the compression joint surface of the lock tongue, the battery box is prevented from shaking caused by a gap, and the real integrated fastening is realized, so that the locking device is safe and reliable.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (7)
1. A locking device assembly of a heavy-duty battery box comprises a battery bracket and a plurality of locking devices arranged on the battery bracket; the locking device is characterized by comprising a bottom plate, a driver arranged on the bottom plate, a lock tongue support arranged on the bottom plate, a lock tongue rotatably arranged on the lock tongue support, a locking rod positioned at the back of the lock tongue and an intermediate mechanism matched with the output of the driver; the lock tongue is provided with a slot; the bottom of the anti-pushing rod is hinged to the bottom plate, the anti-pushing rod rotates between a locking position and an opening position, when the anti-pushing rod is in the locking position, the anti-pushing rod abuts against the back of the lock tongue and forms an interlocking stop, and when the anti-pushing rod is in the opening position, the anti-pushing rod is far away from the back of the lock tongue and is mutually unlocked with the lock tongue;
the intermediate mechanism comprises a guide shaft penetrating through the slot, a first stop lever matched with the stop rod and a connecting piece for connecting the first stop lever and the guide shaft; the outer diameter of the guide shaft is smaller than the length of the slot, when the guide shaft is driven by the driver to move in the slot and move towards the direction of the thrust rod, the guide shaft drives the first stop rod to push the thrust rod towards the direction away from the back of the lock tongue, so that the thrust rod and the lock tongue are unlocked mutually until the guide shaft reaches and abuts against the end part of the slot, and then the lock tongue is pushed to rotate towards the back direction.
2. The heavy truck battery compartment locking device assembly of claim 1, wherein: the connecting piece comprises a sleeve connected with the upper end of the first stop lever, a straight rod positioned at the outer end of the sleeve and a shaft sleeve positioned at the outer side of the guide shaft, wherein the shaft sleeve is provided with a through hole, the straight rod penetrates through the through hole and slides in the through hole, the side surface of the lock tongue is provided with a rod shaft, and the sleeve is sleeved on the rod shaft and rotates relative to the rod shaft; the dial shaft is arranged in parallel with the guide shaft and is positioned above the guide shaft.
3. The heavy truck battery compartment locking device assembly of claim 2, wherein: the first stop lever is an outwards convex arc-shaped lever, and the outer side surface of the stop lever is provided with a first stop lever which outwards protrudes and is matched with the stop lever; when the anti-pushing rod is at the locking position, the first stop rod is positioned below the anti-pushing rod side stop rod and is not in contact with the anti-pushing rod side stop rod, when the guide shaft is driven by the driver to move in the slot and move towards the anti-pushing rod direction, the anti-pushing rod is interlocked with the lock tongue, the lock tongue is not moved, the shaft sleeve moves relative to the straight rod and drives the sleeve to rotate, the sleeve rotates and then drives the lower end of the first stop rod to lift up the anti-pushing rod side stop rod, and the anti-pushing rod is far away from the back of the lock tongue and the lock tongue to unlock each other.
4. The heavy truck battery compartment locking device assembly of claim 3, wherein: the back of the lock tongue and the surface of the thrust rod facing the lock tongue are both provided with ratchet structures, and when the thrust rod is at the locking position, the thrust rod and the back of the lock tongue are mutually locked through the ratchet structures.
5. The heavy truck battery compartment locking device assembly of any one of claims 1 to 4, wherein: a spring is connected between the lower end of the push stopping rod and the bottom plate to serve as a reset mechanism.
6. The heavy truck battery compartment locking device assembly of any one of claims 1 to 4, wherein: the driver is an air cylinder.
7. The heavy truck battery compartment locking device assembly of claim 1, wherein: the battery bracket comprises an outer frame body, a plurality of locking devices are arranged on the outer frame body, and an installation bottom plate of each locking device is arranged on the inner side of the outer frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211300780.2A CN115503457B (en) | 2022-10-24 | 2022-10-24 | Heavy-duty truck battery box locking device assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211300780.2A CN115503457B (en) | 2022-10-24 | 2022-10-24 | Heavy-duty truck battery box locking device assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115503457A CN115503457A (en) | 2022-12-23 |
| CN115503457B true CN115503457B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211300780.2A Active CN115503457B (en) | 2022-10-24 | 2022-10-24 | Heavy-duty truck battery box locking device assembly |
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|---|---|---|---|---|
| CN115817267B (en) * | 2022-12-28 | 2024-01-30 | 江苏众如金属科技有限公司 | Heavy-duty truck locking device assembly with force sensing function |
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| CN115503457A (en) | 2022-12-23 |
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