Anti-falling device and battery transfer equipment comprising same

Abstract

The invention discloses an anti-falling device and battery transfer equipment comprising the anti-falling device, the battery transfer equipment comprises a lift car capable of lifting and moving and used for bearing a battery pack, the anti-falling device comprises a trigger assembly and a limiting assembly, the trigger assembly is arranged on the battery transfer equipment and located on one side of the lift car, and the limiting assembly is arranged on the lift car. The triggering assembly is configured to ascend and descend at the same time with the lift car at the preset speed. The limiting assembly is matched with the triggering assembly and connected with the lift car, the limiting assembly has a first state and a second state, and when the descending speed of the lift car is higher than the preset speed, the triggering assembly drives the limiting assembly to be switched from the first state to the second state so as to limit descending of the lift car. According to the anti-falling device, under the condition that the lift car falls out of control or even freely falls, the falling speed of the lift car is increased to drive the falling speed of the limiting assembly connected with the lift car to be higher than the falling speed of the triggering assembly, the limiting assembly is pulled by the triggering assembly and switched to the second state, and then emergency braking of the lift car can be achieved; and potential safety hazards are avoided.

Description

Technical Field

[0001] The present invention relates to a fall prevention device and a battery transfer device including the same. Background Art

[0002] When replacing the battery of an existing electric vehicle, it is usually necessary to remove the discharged battery pack from the electric vehicle and transport it to the charging rack, and remove the fully charged battery pack from the battery compartment of the charging rack and transport it to the electric vehicle. Among them, the batteries are usually stored on the charging rack in a stacked form. Therefore, when the battery transfer device removes or places the battery, the car needs to move not only horizontally but also vertically.

[0003] During the vertical movement of the car, if a failure occurs and the speed stalls or the power is lost, the car will fall out of control or even free fall, resulting in damage to the battery transfer device. And the battery packs on the battery transfer device will also be damaged together. In severe cases, it may even cause combustion and explosion after the battery pack is damaged. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect that the battery transfer device in the prior art lacks safety guarantee after a failure and power loss, will fall out of control and cause damage to the battery transfer device and the battery pack, resulting in potential safety hazards, and provide a fall prevention device and a battery transfer device including the same.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a fall prevention device for a battery transfer device. The battery transfer device includes a car that can move up and down and is used to carry battery packs. The fall prevention device includes:

[0007] A trigger assembly, which is arranged on the battery transfer device and on one side of the car, and the trigger assembly is configured to lift and lower at a preset speed simultaneously with the car;

[0008] A limiting assembly, which cooperates with the trigger assembly and is connected to the car. The limiting assembly has a first state and a second state. When the descending speed of the car is higher than the preset speed, the trigger assembly drives the limiting assembly to switch from the first state to the second state to limit the descent of the car.

[0009] In this solution, adopting the above structural form, once the car gets out of control and falls, or even in free fall, the falling speed of the car increases, driving the limiting component connected to the car to descend faster than the triggering component. As a result, the limiting component is pulled by the triggering component and switches to the second state, thereby enabling the emergency braking of the car, avoiding the situation where the car stalls and causes damage to the battery transfer equipment or the battery pack, and preventing potential safety hazards.

[0010] Preferably, the limiting component includes a clamping post and a clamping component. The clamping component is connected to one side of the car, and the clamping post is disposed opposite to the clamping component and located outside the car.

[0011] When the limiting component is in the first state, the clamping component is disengaged from the clamping post; when the limiting component is in the second state, the clamping component cooperates with the clamping post to restrict the descent of the car.

[0012] In this solution, adopting the above structural form, the emergency braking of the car when it stalls and falls due to a fault is achieved through the cooperation between the clamping post and the clamping component, which is safe and reliable.

[0013] Preferably, the clamping post is provided with a clamping groove, and the clamping component includes a protruding rod, and the protruding rod is connected to the triggering component.

[0014] The protruding rod is configured such that when the limiting component is in the first state, the protruding rod remains in the initial position and is disengaged from the clamping post; when the descending speed of the car is higher than the preset speed, the triggering component drives the protruding rod to move to cooperate with the clamping groove so that the limiting component is in the second state.

[0015] In this solution, adopting the above structural form, the emergency braking of the car is achieved through the cooperation between the protruding rod and the clamping groove, with stable braking effect and preventing the car from falling off the battery transfer equipment.

[0016] Preferably, the clamping component includes a mounting bracket and a linkage plate. The protruding rod is disposed inside the mounting bracket and connected to the linkage plate, and the upper end of the linkage plate is connected to the triggering component.

[0017] When the descending speed of the car is higher than the preset speed, the triggering component pulls the linkage plate to move upward relative to the mounting bracket, and the linkage plate pushes the protruding rod towards the direction of the clamping groove during the movement.

[0018] In this solution, adopting the above structural form, the triggering component drives the linkage plate and the protruding rod to move in sequence, thereby realizing the pushing out of the protruding rod to cooperate with the clamping groove. Such a design has a simple overall structure and high reliability.

[0019] Preferably, a guiding groove is formed in the linkage plate, and the guiding groove is inclined downward from top to bottom along the insertion direction of the protruding rod into the clamping groove.

[0020] A horizontal groove is provided on the mounting bracket, and the horizontal groove extends along the insertion direction of the protruding rod into the clamping groove.

[0021] A guiding post is provided on the protruding rod, and at least a part of the guiding post is simultaneously accommodated in the guiding groove and the horizontal groove.

[0022] In this solution, with the above structural form, during the process that the linkage plate is pulled by the triggering component to move upward relative to the mounting bracket, the guiding post on the protruding rod is driven to slide in the guiding groove. Under the limitation of the horizontal groove, the guiding post simultaneously moves along the extending direction of the horizontal groove in the horizontal groove, so as to drive the protruding rod to move horizontally towards the clamping groove, thereby realizing that the protruding rod can be inserted into the clamping groove. Through the mechanical structure rather than in the electrical environment, the control is reliable, and the possibility of failure can be reduced or avoided.

[0023] Preferably, the clamping component further includes a connecting piece, and two ends of the connecting piece are respectively connected to the linkage plate and the mounting bracket. The connecting piece is configured to break or deform when the linkage plate is pulled by the triggering component, so as to realize the relative movement between the linkage plate and the mounting bracket.

[0024] And / or, a sliding groove is formed in the mounting bracket, the protruding rod is placed in the sliding groove, and the sliding groove extends along the insertion direction of the protruding rod into the clamping groove.

[0025] And / or, a notch portion penetrating up and down is formed in the mounting bracket, the linkage plate is placed in the notch portion and can move up and down in the notch portion.

[0026] In this solution, with the above structural form, two ends of the connecting piece are respectively connected to the linkage plate and the mounting bracket, so that when the car is lifting normally and the triggering component does not pull the linkage plate, the relative movement of the linkage plate relative to the mounting bracket is avoided, and further the protruding rod is ensured not to be inserted into the clamping groove. The extending direction of the protruding rod is restricted by the sliding groove, and the possibility that the protruding rod cannot be docked with the clamping groove after extending is reduced or avoided. By providing the notch portion, the contact interference between the linkage plate and the mounting bracket during the up and down movement of the linkage plate is avoided, and the movement direction of the linkage plate can also be restricted.

[0027] Preferably, the anti-falling device includes a fixed rod extending vertically, the fixed rod is installed on the battery transfer device, and the trigger assembly is configured to be slidably connected to the fixed rod when the car ascends and descends at the preset speed; the trigger assembly is configured to be self-locked and unable to slide relative to the fixed rod when the descending speed of the car is higher than the preset speed.

[0028] Preferably, the trigger assembly includes a connecting rod, and the connecting rod is configured to rotate under the pulling force of the descending car and abut against the fixed rod to be self-locked when the descending speed of the car is higher than the preset speed, and pull the limiting assembly to switch to the second state.

[0029] In this solution, with the above structural form, when the limiting assembly is triggered by the trigger assembly and switches from the first state to the second state, at the same time, the trigger assembly switches to the self-locked state relative to the fixed rod and cannot slide relative to the fixed rod to hold, further ensuring the realization of the switching of the limiting assembly between the first state and the second state. When the car ascends and descends normally, the trigger assembly is slidably connected to the fixed rod, reducing or avoiding the situation of blockage during the ascending and descending process of the trigger assembly, thereby avoiding the blockage of the descending car; when the car falls out of control, since the descending speed of the car increases and drives the limiting assembly faster than the trigger assembly, the limiting assembly is triggered by the trigger assembly and switches from the first state to the second state to limit the further descent of the car; at the same time, the trigger assembly is self-locked and fixed on the fixed rod, so that during the process of the limiting assembly switching to the second state, even if the extending rod does not cooperate with the clamping groove immediately, the limiting assembly can be held by the self-locking of the trigger assembly to prevent the car from further descending. Such a design realizes secondary protection to limit the further descent of the car. The connecting rod connected to the limiting assembly rotates under the gravity of the car and abuts against the fixed rod to realize the self-locking of the trigger assembly relative to the fixed rod, and then can hold the limiting assembly to further prevent the car from descending, with fast response and high reliability.

[0030] Preferably, the anti-falling device further includes a detection mechanism, and the detection mechanism is arranged at the upper end of the mounting frame and is configured to control the motor connected to the car to stop running when it detects that the linkage plate moves relative to the mounting frame.

[0031] In this solution, with the above structural form, by setting the detection mechanism, after detecting the linkage plate, it feeds back to the motor to stop the movement of the car, with high safety; in addition, if the limiting assembly switches to the second state due to mis-triggering, the car can also be stopped by stopping the motor, avoiding the situation that the motor continues to run and drives the car to further fall, resulting in damage to the limiting assembly.

[0032] Preferably, the number of the clamping grooves is multiple, and the multiple clamping grooves are arranged at intervals along the height direction of the clamping column.

[0033] In this solution, adopting the above structural form, multiple clamping grooves are arranged on the clamping posts. As long as the protruding rod descends to a position corresponding to one of the clamping grooves, clamping can be achieved in a timely manner, with a fast response.

[0034] The present invention also provides a battery transfer device, and the battery transfer device includes the anti-falling device as described above.

[0035] The positive and progressive effects of the present invention are as follows:

[0036] In the anti-falling device of the present invention, when the car falls out of control or even in free fall, the falling speed of the car accelerates, driving the falling speed of the limit component connected to the car to be faster than the falling speed of the trigger component. Furthermore, the limit component is pulled by the trigger component and switches to the second state, thereby enabling emergency braking of the car, avoiding the situation where the car stalls and causes damage to the battery transfer device or the battery pack, and avoiding potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic structural diagram of the battery transfer device according to a preferred embodiment of the present invention.

[0038] Figure 2 It is a schematic structural diagram of the anti-falling device according to a preferred embodiment of the present invention in the first state.

[0039] Figure 3 It is a schematic structural diagram of the trigger component of the anti-falling device according to a preferred embodiment of the present invention in the first state.

[0040] Figure 4 It is a schematic structural diagram of the limit component of the anti-falling device according to a preferred embodiment of the present invention in the first state.

[0041] Figure 5 It is a partial structural schematic diagram of the limit component of the anti-falling device according to a preferred embodiment of the present invention in the first state.

[0042] Figure 6 It is a schematic structural diagram of another angle of the limit component of the anti-falling device according to a preferred embodiment of the present invention in the first state.

[0043] Figure 7 It is a schematic structural diagram of the anti-falling device according to a preferred embodiment of the present invention in the second state.

[0044] Figure 8 It is a schematic structural diagram of the trigger component of the anti-falling device according to a preferred embodiment of the present invention in the second state.

[0045] Figure 9 It is a schematic structural diagram of the limit component of the anti-falling device according to a preferred embodiment of the present invention in the second state.

[0046] Figure 10 The partial structural schematic diagram of the limiting component when the anti-falling device in the preferred embodiment of the present invention is in the second state.

[0047] Figure 11 The structural schematic diagram of the clamping post in the preferred embodiment of the present invention.

[0048] Explanation of reference numerals:

[0049] Anti-falling device 1

[0050] Triggering component 11

[0051] Link 111

[0052] Sleeve 112

[0053] First connecting plate 113

[0054] Second connecting plate 114

[0055] Limiting component 12

[0056] Clamping post 121

[0057] Clamping groove 1211

[0058] Clamping component 122

[0059] Protruding rod 1221

[0060] Guide post 12211

[0061] Mounting frame 1222

[0062] Horizontal groove 12221

[0063] Sliding groove 12222

[0064] Notch part 12223

[0065] First mounting plate 12224

[0066] Second mounting plate 12225

[0067] Linkage plate 1223

[0068] Guide groove 12231

[0069] Connecting piece 1224

[0070] Connecting rod 1225

[0071] Fixed rod 13

[0072] Detection mechanism 14

[0073] Mounting side plate 15

[0074] L-shaped connecting block 16

[0075] carriage 2

[0076] battery transfer device 3

[0077] column 4 Detailed implementation manners

[0078] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments accordingly.

[0079] Please also refer to Figures 1 to 11 for understanding. An anti-falling device 1 is provided in an embodiment of the present invention. The anti-falling device 1 is used in a battery transfer device 3. The battery transfer device 3 includes a carriage 2 that can be lifted and moved and is used to carry battery packs. The anti-falling device 1 includes a trigger component 11 and a limit component 12. Among them, the trigger component 11 is disposed on the battery transfer device 3 and on one side of the carriage 2. The trigger component 11 is configured to lift and lower at a preset speed simultaneously with the carriage 2. The limit component 12 cooperates with the trigger component 11 and is connected to the carriage 2. The limit component 12 has a first state and a second state. When the descending speed of the carriage 2 is higher than the preset speed, the trigger component 11 drives the limit component 12 to switch from the first state to the second state to limit the descent of the carriage 2. The carriage 2 lifts and lowers at a preset speed. The trigger component 11 lifts and lowers synchronously with the carriage 2. The limit component 12 is in the first state and does not affect the lifting and moving of the carriage 2. When the battery transfer device 3 fails or loses power, the carriage 2 falls out of control. The falling speed of the carriage 2 accelerates, and drives the descending speed of the limit component 12 connected to the carriage 2 to be faster than the descending speed of the trigger component 11. Furthermore, the trigger component 11 drives the limit component 12 to switch to the second state to limit the descent of the carriage 2, thereby realizing the emergency braking of the carriage 2. That is to say, once the carriage 2 falls out of control or even free-falls, the falling speed of the carriage 2 accelerates, driving the descending speed of the limit component 12 connected to the carriage 2 to be faster than the descending speed of the trigger component 11. Furthermore, the limit component 12 is pulled by the trigger component 11 and switches to the second state, thereby being able to realize the emergency braking of the carriage 2, and being able to avoid the situation where the battery transfer device 3 or the battery pack is damaged due to the out-of-control speed of the carriage 2, and avoiding potential safety hazards.

[0080] In this embodiment, as Figure 2 , Figure 7 and Figure 11As shown, the limit assembly 12 includes a clamping column 121 and a clamping assembly 122, the clamping assembly 122 is connected to one side of the car 2, the clamping column 121 and the clamping assembly 122 are arranged opposite to each other and are located outside the car 2; when the limit assembly 12 is in the first state, the clamping assembly 122 is separated from the clamping column 121; when the limit assembly 12 is in the second state, the clamping assembly 122 cooperates with the clamping column 121 to limit the descent of the car 2. When the car 2 falls normally, the limit assembly 12 is in the first state, the clamping assembly 122 is separated from the clamping column 121, so as not to affect the lifting and lowering movement of the car 2; when the car 2 stalls and falls, the limit assembly 12 switches from the first state to the second state, the clamping assembly 122 cooperates with the clamping column 121 to prevent the clamping assembly 122 connected to the car 2 from moving downward, thereby realizing the emergency braking of the car 2. The cooperation between the clamping column 121 and the clamping assembly 122 can realize emergency braking when the car 2 stalls and falls due to a fault, which is safe and reliable.

[0081] In this embodiment, if Figure 2 , Figure 7 and Figure 11 As shown, the clamping column 121 is provided with a clamping groove 1211, and the clamping assembly 122 includes a protruding rod 1221, which is connected to the trigger assembly 11; the protruding rod 1221 is configured so that when the limit assembly 12 is in the first state, the protruding rod 1221 remains in the initial position and is separated from the clamping column 121; when the descending speed of the elevator car 2 is higher than the preset speed, the trigger assembly 11 drives the protruding rod 1221 to move to match the clamping groove 1211 so that the limit assembly 12 is in the second state. Figure 2 As shown, the car 2 is lifted normally, the limit assembly 12 is in the first state, the extension rod 1221 is disengaged from the clamping column 121, and the matching relationship between the car 2 and the clamping column 121 is released, and the car 2 can be lowered normally; Figure 7 As shown, the car 2 stalls and descends, the limit assembly 12 is in the second state, and the extension rod 1221 cooperates with the clamping groove 1211 to limit the descent of the car 2. The emergency braking of the car 2 is achieved by the cooperation between the extension rod 1221 and the clamping groove 1211, and the braking effect is stable, preventing the car 2 from falling off the battery transfer device 3.

[0082] In this embodiment, if Figures 2 to 10As shown in the figure, the clamping component 122 includes a mounting bracket 1222 and a linkage plate 1223. The protruding rod 1221 is arranged inside the mounting bracket 1222 and is connected to the linkage plate 1223. The upper end of the linkage plate 1223 is connected to the trigger component 11. When the descending speed of the car 2 is higher than the preset speed, the trigger component 11 pulls the linkage plate 1223 to move upward relative to the mounting bracket 1222. During the movement of the linkage plate 1223, the protruding rod 1221 is pushed out towards the clamping groove 1211. In other words, when the car 2 stalls and falls, the trigger component 11 pulls the linkage plate 1223 out of the mounting bracket 1222 to drive the protruding rod 1221 to move towards the clamping post 121 and extend into the clamping groove 1211. By driving the linkage plate 1223 and the protruding rod 1221 to move in sequence through the trigger component 11, the protruding rod 1221 is pushed out to cooperate with the clamping groove 1211. Such a design has a simple overall structure and high reliability.

[0083] In this embodiment, a guiding groove 12231 is formed on the linkage plate 1223. The guiding groove 12231 is inclined downward from top to bottom along the insertion direction of the protruding rod 1221 into the clamping groove 1211. A horizontal groove 12221 is provided on the mounting bracket 1222. The horizontal groove 12221 extends along the insertion direction of the protruding rod 1221 into the clamping groove 1211. A guiding post 12211 is provided on the protruding rod 1221. At least part of the guiding post 12211 is simultaneously accommodated in the guiding groove 12231 and the horizontal groove 12221. During the process that the linkage plate 1223 is pulled by the trigger component 11 to move upward relative to the mounting bracket 1222, the guiding post 12211 on the protruding rod 1221 is driven to slide in the guiding groove 12231. Under the limitation of the horizontal groove 12221, the guiding post 12211 also moves along the extending direction of the horizontal groove 12221 in the horizontal groove 12221 to drive the protruding rod 1221 to move horizontally towards the clamping groove 1211, so as to realize that the protruding rod 1221 can be inserted into the clamping groove 1211. Through a mechanical structure rather than in an electrical environment, the control is reliable and the possibility of failure can be reduced or avoided.

[0084] In this embodiment, as Figure 2 shown, the clamping component 122 further includes a connecting piece 1224. Two ends of the connecting piece 1224 are respectively connected to the linkage plate 1223 and the mounting bracket 1222. The connecting piece 1224 is configured to break or deform when the linkage plate 1223 is pulled by the trigger component 11 to realize the relative movement between the linkage plate 1223 and the mounting bracket 1222. Two ends of the connecting piece 1224 are respectively connected to the linkage plate 1223 and the mounting bracket 1222, so as to prevent the linkage plate 1223 from moving relative to the mounting bracket 1222 when the car 2 is lifting or lowering normally and the trigger component 11 does not pull the linkage plate 1223, thereby ensuring that the protruding rod 1221 will not be inserted into the clamping groove 1211.

[0085] Specifically, a wire rope is used as the breakable or deformable connecting member, which saves costs.

[0086] In this embodiment, as Figure 10 shown, a sliding groove 12222 is provided in the mounting bracket 1222, the protruding rod 1221 is placed in the sliding groove 12222, and the sliding groove 12222 extends along the insertion direction of the protruding rod 1221 into the clamping groove. The extension direction of the protruding rod 1221 is restricted by the sliding groove 12222, reducing or avoiding the possibility that the protruding rod 1221 cannot be docked with the clamping groove 1211 after extension.

[0087] In this embodiment, as Figure 6 shown, a notch portion 12223 penetrating up and down is provided on the mounting bracket 1222, and the linkage plate 1223 is placed in the notch portion 12223 and can move up and down in the notch portion 12223. During the process of the trigger assembly 11 pulling the linkage plate 1223, the linkage plate 1223 is pulled out of the mounting bracket 1222 through the notch portion 12223. By providing the notch portion 12223, contact interference between the linkage plate 1223 and the mounting bracket 1222 during the up and down movement of the linkage plate 1223 is avoided, and the movement direction of the linkage plate 1223 can also be restricted.

[0088] Specifically, the mounting bracket 1222 includes a first mounting plate 12224 and a second mounting plate 12225. The first mounting plate 12223 and the second mounting plate 12225 are oppositely arranged to form an accommodation space. The protruding rod 1221 and the linkage plate 1223 are both accommodated in the accommodation space. Among them, a sliding groove 12222 is provided on the side of the first mounting plate 12224 close to the second mounting plate 12225. The protruding rod 1221 is installed in the sliding groove 12222 and can slide in the sliding groove 12222. The linkage plate 1223 is placed between the protruding rod 1221 and the second mounting plate 12225, and the linkage plate 1223 can move up and down in the notch portion 12223 between the first mounting plate 12224 and the second mounting plate 12225.

[0089] In this embodiment, as Figure 4 and Figure 5 shown, the mounting bracket 1222 is installed on one side of the car 2 through the mounting side plate 15. At least one end of the upper and lower ends of the mounting bracket 1222 is connected to the mounting side plate 15 through the L-shaped mounting block 16, and the mounting stability is high.

[0090] In this embodiment, as Figure 2 、 3, as shown in FIGS. 7 and 8, the anti-falling device 1 includes a fixed rod 13 extending vertically. The fixed rod 13 is installed on the battery transfer device. The trigger assembly 11 is configured to be slidably connected to the fixed rod 13 when the car 2 moves up and down at a preset speed; the trigger assembly 11 is configured to be self-locked and unable to slide relative to the fixed rod 13 when the descending speed of the car 2 is higher than the preset speed. When the limit assembly 12 is triggered by the trigger assembly 11 and switches from the first state to the second state, at the same time, the trigger assembly 11 switches to the self-locked state relative to the fixed rod 13 and cannot slide relative to the fixed rod 13 to hold, further ensuring the realization of the switching of the limit assembly 12 between the first state and the second state. When the car 2 moves up and down normally, the trigger assembly 11 is slidably connected to the fixed rod 13, reducing or avoiding the situation of blockage during the lifting and lowering of the trigger assembly 11, and thus avoiding the blockage of the descent of the car 2; when the car 2 falls at a stall, since the falling speed of the car 2 increases and drives the speed of the limit assembly 12 faster than the speed of the trigger assembly 11, the limit assembly 12 is triggered by the trigger assembly 11 and switches from the first state to the second state to limit the further descent of the car 2; at the same time, the trigger assembly 11 is self-locked and fixed on the fixed rod 13, so that during the process of the limit assembly 12 switching to the second state, even if the extension rod 1221 does not cooperate with the clamping groove 1211 immediately, the limit assembly 12 can be pulled by the self-locking of the trigger assembly 11 to prevent the car 2 from further descending. Such a design realizes a secondary protection to limit the further descent of the car 2.

[0091] In this embodiment, as Figure 2 and Figure 7 shown, the trigger assembly 11 includes a connecting rod 111. The connecting rod 111 is configured to rotate under the pulling force of the descent of the car 2 and abut against the fixed rod 13 to be self-locked when the descending speed of the car 2 is higher than the preset speed, and pull the limit assembly 12 to switch to the second state. When the car 2 moves up and down normally, the car 2, the trigger assembly 11 and the limit assembly 12 move up and down at a preset speed synchronously; once the car 2 falls at a stall, the car 2 accelerates and falls, driving the descending speed of the limit assembly 12 faster than the descending speed of the trigger assembly 11. The limit assembly 12 is triggered by the trigger assembly 11 to switch from the first state to the second state to limit the descent of the car 2; in addition, the connecting rod 111 connected to the limit assembly 12 rotates under the gravity of the car 2 and abuts against the fixed rod 13 to realize the self-locking of the trigger assembly 11 relative to the fixed rod 13, and thus can hold the limit assembly 12 to further prevent the car 2 from descending, with fast response and high reliability.

[0092] Specifically, the connecting rod 111 is connected to the upper end of the linkage plate 1223 through a connecting piece 1224. As Figure 3 and Figure 8As shown in the figure, the trigger assembly includes a sleeve 112, a connecting rod 111, a second connecting plate 114, and a first connecting plate 113 that are connected in sequence. The sleeve 112, the connecting rod 111, the second connecting plate 114, and the first connecting plate 113 enclose a frame structure. The sleeve 112 is sleeved on the outer peripheral side of the fixed rod 13 and is used for sliding connection relative to the fixed rod 13. As Figure 3 shown, the trigger assembly 11 falls uniformly at a preset speed synchronously with the car 2, and the trigger assembly 11 has a rectangular frame structure; as Figure 8 shown, when the car 2 accelerates and falls out of control, the connecting rod 111 is pulled by the car 2 to rotate relative to the fixed rod 13 and abuts against the fixed rod 13. At this time, the trigger assembly 11 has a rhombus frame structure, and the first connecting plate 113 can also rotate relative to the fixed rod 13 and abut against the fixed rod 13, strengthening the fixing effect of the trigger assembly 11 relative to the fixed rod 13.

[0093] In this embodiment, as Figure 4 shown, the anti-falling device 1 further includes a detection mechanism 14. The detection mechanism 14 is arranged at the upper end of the mounting bracket 1222 and is configured to control the motor connected to the car 2 to stop running when it detects that the linkage plate 1223 moves relative to the mounting bracket 1222. During the process of the linkage plate 1223 moving upward relative to the mounting bracket 1222, the detection mechanism 14 can detect the linkage plate 1223 and feed this signal back to the control unit to control the motor connected to the car 2 to stop running. By setting the detection mechanism 14, after detecting the linkage plate 1223, it feeds back to the motor to stop the car 2, which has high safety; in addition, if the limit component 12 switches to the second state due to mis-triggering, the car 2 can also be stopped by stopping the motor, avoiding the motor continuing to rotate and driving the car 2 to fall further, resulting in damage to the limit component 12.

[0094] In this embodiment, as Figure 11 shown, the number of the clamping grooves 1211 is multiple, and the multiple clamping grooves 1211 are arranged at intervals along the height direction of the clamping post 121. By arranging multiple clamping grooves 1211 on the clamping post 121, clamping can be achieved in time as long as the protruding rod 1221 descends to a position corresponding to one of the clamping grooves 1211, and the response is fast.

[0095] During specific implementation, as Figures 2 to 6 shown, when the car 2 descends uniformly at a preset speed, the trigger assembly 11 and the limit assembly 12 also descend synchronously and uniformly at a preset speed. The connecting rod 111 is not affected by the gravity of the car 2 and does not rotate relative to the fixed rod 13, so that the trigger assembly 11 has a rectangular frame structure. The connecting piece 1224 pulls the linkage plate 1223 to prevent it from moving relative to the mounting bracket 1222, and the protruding rod 1221 is placed in the sliding groove 12222 and disengages from the clamping groove 1211, enabling the car 2 to move up and down normally.

[0096] As Figures 7 to 10 shown, once the car 2 gets out of control and accelerates downward, the downward speed of the car 2 driving the limit component 12 during acceleration is faster than that of the trigger component 11. The limit component 12 is triggered by the trigger component 11 to switch from the first state to the second state. The trigger component 11 exerts an upward pulling force on the linkage plate 1223, causing the linkage plate 1223 to move upward relative to the mounting bracket 1222. During this process, the connecting piece 1224 is deformed or broken under force, and the linkage plate 1223 can drive the guide post 12211 on the protruding rod 1221 to slide in the guide groove 12231. Under the limitation of the horizontal groove 12221, the guide post 12211 moves in the horizontal groove 12221 along the extension direction of the horizontal groove 12221, so as to enable the protruding rod 1221 to be inserted into the clamping groove 1211, so as to realize the clamping connection between the car 2 and the clamping post 121, thereby restricting the continuous descent of the car 2; during the process of the limit component 12 switching to the second state, the connecting rod 111 connected to the limit component 12 rotates under the gravity of the car 2 and abuts against the fixed rod 13 to realize the self-locking of the trigger component 11 relative to the fixed rod 13. The first connecting plate 113 can also rotate relative to the fixed rod 13 and abut against the fixed rod 13. At this time, the trigger component 11 is in a rhombic frame structure and is fixed on the fixed rod 13, so as to be able to pull the linkage plate 1223 and further restrict the continuous descent of the car 2.

[0097] As Figure 1 shown, an embodiment of the present invention further provides a battery transfer device 3. The battery transfer device 3 includes a car 2, a column 4, and the anti-falling device 1 as described above. The number of columns 4 is at least two, which are respectively located on both sides of the car 2. The car 2 is connected to the columns 4 and can move up and down relative to the columns 4. The trigger component 11 and the limit component 12 are installed on the same side of the car 2. The upper end of the fixed rod 13 is fixedly connected to the column 4 on one side of the car 2 and is arranged opposite to the column 4. The lower end of the fixing plate 13 is fixed to the base of the battery transfer device 3. The trigger component 11 is sleeved on the fixed rod 13. The clamping post 121 is fixedly connected to the column 4 on one side of the car 2. The clamping component 122 is installed on the outside of the car 2 and is arranged opposite to the clamping post 121.

[0098] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A fall prevention device is used in a battery transfer device. The battery transfer device includes a car that can be lifted and moved and is used to carry battery packs, and is characterized in that, The anti-falling device includes: A triggering component, which is arranged on the battery transfer device and on one side of the car, and the triggering component is configured to lift and lower at a preset speed simultaneously with the car; A limiting component, which cooperates with the triggering component and is connected to the car. The limiting component has a first state and a second state. When the descending speed of the car is higher than the preset speed, the triggering component drives the limiting component to switch from the first state to the second state to limit the descent of the car.

2. The anti-falling device according to claim 1, characterized in that, The limiting component includes a clamping post and a clamping component. The clamping component is connected to one side of the car, and the clamping post is arranged opposite to the clamping component and is located outside the car; When the limiting component is in the first state, the clamping component is arranged away from the clamping post; when the limiting component is in the second state, the clamping component cooperates with the clamping post to limit the descent of the car.

3. The anti-falling device according to claim 2, characterized in that A clamping groove is provided on the clamping post, and the clamping component includes a protruding rod, and the protruding rod is connected to the triggering component; The protruding rod is configured such that when the limiting component is in the first state, the protruding rod remains in the initial position and is arranged away from the clamping post; when the descending speed of the car is higher than the preset speed, the triggering component drives the protruding rod to move to cooperate with the clamping groove so that the limiting component is in the second state.

4. The anti-falling device according to claim 3, characterized in that, The clamping component includes a mounting frame and a linkage plate. The protruding rod is arranged in the mounting frame and is connected to the linkage plate, and the upper end of the linkage plate is connected to the triggering component; When the descending speed of the car is higher than the preset speed, the triggering component pulls the linkage plate to move upward relative to the mounting frame, and the linkage plate pushes the protruding rod in the direction of the clamping groove during the movement.

5. The anti-falling device according to claim 4, characterized in that, A guiding groove is formed on the linkage plate, and the guiding groove is inclined from top to bottom along the insertion direction of the protruding rod into the clamping groove; A horizontal groove is provided on the mounting frame, and the horizontal groove extends along the insertion direction of the protruding rod into the clamping groove; A guiding post is provided on the protruding rod, and at least part of the guiding post is simultaneously received in the guiding groove and the horizontal groove; 6. The anti-falling device according to claim 4, characterized in that, The clamping component further includes a connecting piece, and two ends of the connecting piece are respectively connected to the linkage plate and the mounting frame. The connecting piece is configured to be able to break or deform when the linkage plate is pulled by the triggering component to realize the relative movement between the linkage plate and the mounting frame; And / or, a sliding groove is provided in the mounting frame, the protruding rod is placed in the sliding groove, and the sliding groove extends along the insertion direction of the protruding rod into the clamping groove; And / or, a notch part penetrating up and down is formed on the mounting frame, the linkage plate is placed in the notch part and can move up and down in the notch part.

7. The anti-falling device according to claim 1, characterized in that, The anti-falling device includes a fixed rod extending vertically, the fixed rod is installed on the battery transfer device, and the trigger assembly is configured to be slidably connected to the fixed rod when the car moves up and down at the preset speed; the trigger assembly is configured to be self-locked and unable to slide relative to the fixed rod when the descending speed of the car is higher than the preset speed. Preferably, the trigger assembly includes a connecting rod, and the connecting rod is configured to rotate under the pulling force of the descending car and abut against the fixed rod to be self-locked when the descending speed of the car is higher than the preset speed, and pull the limiting assembly to switch to the second state.

8. The anti-falling device according to claim 4, characterized in that, The anti-falling device further includes a detection mechanism, and the detection mechanism is arranged at the upper end of the mounting frame and is configured to control the motor connected to the car to stop running when it detects that the linkage plate moves relative to the mounting frame.

9. The anti-falling device according to claim 3, characterized in that, The number of the clamping grooves is multiple, and the multiple clamping grooves are arranged at intervals along the height direction of the clamping post.

10. A battery transfer device, characterized in that, The battery transfer device includes the anti-falling device according to any one of claims 1-9.

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