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, and the anti-falling device comprises a detection mechanism and a limiting mechanism; the detection mechanism is arranged on the battery transfer equipment and is used for detecting whether the downward moving state of the lift car is abnormal or not; the limiting mechanism is connected to the lift car, the limiting mechanism has a first state and a second state, and when the detection mechanism detects that the downward moving state of the lift car is abnormal, the limiting mechanism is switched to the second state from the first state so as to limit descending of the lift car. According to the anti-falling device, the motion state of the lift car is detected through the detection mechanism, so that the limiting mechanism is controlled to be switched from the first state to the second state when the motion state of the lift car is abnormal, and the limiting mechanism can achieve emergency braking of the lift car in the falling process of the lift car out of control.

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 a 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 takes out or places a 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 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 protection after a failure or 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 problem through the following technical solutions:

[0006] The present invention provides a fall prevention device for use in a battery transfer device, the battery transfer device including a car that can move up and down and is used to carry battery packs, the fall prevention device including:

[0007] A detection mechanism, disposed on the battery transfer device and used to detect whether the state of the car moving downward is abnormal;

[0008] A limiting mechanism, the limiting mechanism is connected to the car, the limiting mechanism has a first state and a second state, when the detection mechanism detects that the state of the car moving downward is abnormal, the limiting mechanism switches from the first state to the second state to limit the descent of the car.

[0009] In this solution, adopting the above structural form, the movement state of the car is detected by the detection mechanism, so that when the movement state of the car is abnormal, the limiting mechanism is controlled to switch from the first state to the second state, so that the limiting mechanism can achieve emergency braking of the car during the out-of-control falling process of the car, and the situation that the battery transfer device or the battery pack is damaged due to the car stalling can be avoided, and potential safety hazards can be avoided.

[0010] Preferably, the limiting mechanism 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 located outside the car;

[0011] When the limiting mechanism is in the first state, the clamping component is arranged away from the clamping post; when the limiting mechanism is in the second state, the clamping component cooperates with the clamping post to limit the downward movement of the car.

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

[0013] Preferably, a clamping groove is provided on the clamping post, and the clamping component includes a protruding rod;

[0014] The protruding rod is configured such that when the limiting mechanism is in the first state, the protruding rod remains in the initial position and is arranged away from the clamping post; when the detection mechanism detects an abnormal state of the downward movement of the car, the protruding rod can move to cooperate with the clamping groove so that the limiting mechanism is in the second state;

[0015] 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 post.

[0016] In this solution, with the above structural form, the emergency braking of the car is realized through the cooperation between the protruding rod and the clamping groove, and the braking effect is stable, avoiding the car from falling off the battery transfer device. By arranging multiple clamping grooves on the clamping post, as long as the protruding rod slides to a position corresponding to one of the clamping grooves, timely clamping can be achieved, and the response is fast.

[0017] Preferably, the clamping component further includes a mounting bracket. The protruding rod is installed on the mounting bracket through a rotating shaft. The protruding rod is configured to be restricted to remain in the initial position and can be released from the restriction to rotate relative to the mounting bracket so that one end of the protruding rod extends into the clamping groove to achieve cooperation;

[0018] Preferably, a limiting block is fixed on the mounting bracket. The rotating shaft penetrates through the mounting bracket and the protruding rod, and a notch is formed in the radial direction of the rotating shaft. The limiting block is clamped into the notch.

[0019] In this solution, with the above structural form, during the process of the limiting mechanism switching between the first state and the second state, the extending rod rotates relative to the mounting bracket to realize the switching of the extending rod between the initial position and the clamping position, which is convenient for controlling the position of the extending rod relative to the clamping groove. The rotation shaft is limited by the limiting block to restrict the degree of freedom of the rotation shaft along its axial direction, thereby preventing the rotation shaft from shaking during the rotation of the extending rod relative to the rotation shaft and affecting the flipping effect of the extending rod.

[0020] Preferably, one end of the extending rod far from the clamping post is connected to a tension spring. When the restriction on the extending rod is released, the tension spring drives the extending rod to rotate around the rotation shaft, causing the end of the extending rod close to the clamping post to flip upward and extend into the clamping groove.

[0021] In this solution, with the above structural form, after the restriction on the extending rod is released, the rotation of the extending rod is realized by the tension spring, which has a high degree of automation and is convenient for operation. In addition, by extending into the clamping groove in the way of flipping upward, compared with the way of the extending rod vertically inserting into the clamping groove, the possibility that the extending rod cannot be inserted into the clamping groove is reduced, and the reliability is increased.

[0022] Preferably, one end of the extending rod close to the clamping post has a bent portion for extending into the clamping groove, and the side surface of the bent portion close to the clamping post is an arc surface;

[0023] Preferably, the mounting bracket includes a limiting portion for restricting the degree of freedom of the upward flipping of the extending rod.

[0024] In this solution, with the above structural form, by arranging a bent portion at the end of the extending rod, it is convenient for the extending rod to flip and extend into the clamping groove; in addition, during the process of the extending rod moving in the direction close to the clamping post, especially when the extending rod slides down along the clamping post to extend into the clamping groove, the wear between the extending rod and the clamping post is reduced by the arc surface, and the possibility of the extending rod being blocked during the movement can also be reduced. By arranging a limiting portion on the mounting bracket, it is possible to prevent the extending rod from flipping upward excessively and failing to cooperate with the clamping groove.

[0025] Preferably, the anti-falling device further includes a locking assembly and a connecting rod. One end of the connecting rod is connected to the extending rod, and the other end of the connecting rod cooperates with the locking assembly;

[0026] When the detection mechanism detects that the car is descending normally, the locking assembly is locked and connected to the connecting rod, and the extending rod is restricted and in the initial position; when the detection mechanism detects that the abnormal state of the downward movement of the car occurs, the locking assembly is unlocked from the connecting rod so that the extending rod can be released from the restriction.

[0027] In this solution, the above structural form is adopted, and the locking relationship between the connecting rod and the locking component is controlled through the linkage between the detection mechanism and the locking component, so as to control the position of the extending rod. When the car does not malfunction, the locking component limits the extending rod to prevent the extending rod from flipping upwards and affecting the normal lifting and lowering of the car; and when the detection mechanism detects that the movement of the car is abnormal, the locking component can be controlled in time to release the restriction on the extending rod, so that the extending rod can flip and extend into the clamping groove for cooperation to perform an emergency brake on the car.

[0028] Preferably, a first connecting portion is provided on the extending rod, the connecting rod is connected to the extending rod through the first connecting portion, the first connecting portion is located on one side of the rotating shaft close to the clamping post, and the locking component is located on one side of the extending rod away from the clamping post;

[0029] And / or, the locking component includes a locking channel and a locking tongue. When the detection mechanism detects that the state of the car moving downward is abnormal, the locking tongue leaves the locking channel so that the connecting rod can disengage from the locking component.

[0030] In this solution, the above structural form is adopted. When the connecting rod is locked in the locking component, the connecting rod applies a pulling force in the direction close to the locking component to the end of the extending rod close to the clamping post, so as to prevent the end of the extending rod close to the clamping post from flipping upwards and limit the extending rod. The limiting effect is reliable. The movement state of the locking tongue is controlled by the detection signal of the detection mechanism to realize the opening and closing of the locking channel, and then realize that the connecting rod can disengage from the locking component or be locked in the locking component. The response is fast, the degree of automation is high, and it is convenient to control the movement state of the extending rod.

[0031] Preferably, the detection mechanism is a laser rangefinder, and the laser rangefinder is used to detect the displacement change amount of the car within a preset time interval. When the measured displacement change amount is greater than the preset displacement change amount, the limiting mechanism switches from the first state to the second state.

[0032] In this solution, the above structural form is adopted, and whether the car's descent fails is judged according to the displacement change amount measured by the laser rangefinder, and the reliability is high.

[0033] In an embodiment of the present invention, a battery transfer device is further provided, and the battery transfer device includes the anti-falling device as described above.

[0034] The positive and progressive effects of the present invention are as follows:

[0035] The anti-falling device in the present invention detects the motion state of the car through a detection mechanism, so as to control the limit mechanism to switch from the first state to the second state when the motion state of the car is abnormal, so that the limit mechanism can achieve emergency braking of the car during the out-of-control falling process of the car, which can avoid the situation that the car stalls and causes damage to the battery transfer equipment or the battery pack, and avoid potential safety hazards. Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of the battery transfer equipment according to a preferred embodiment of the present invention.

[0037] Figure 2 It is a schematic structural diagram of the limit mechanism in the first state according to a preferred embodiment of the present invention.

[0038] Figure 3 It is a schematic structural diagram of the limit mechanism in the second state according to a preferred embodiment of the present invention.

[0039] Figure 4 It is a schematic structural diagram of the clamping component according to a preferred embodiment of the present invention.

[0040] Figure 5 It is a partial structural diagram of the clamping component according to a preferred embodiment of the present invention.

[0041] Figure 6 It is a partial cross-sectional view of the clamping component according to a preferred embodiment of the present invention.

[0042] Figure 7 It is an installation schematic diagram of the rotating shaft according to a preferred embodiment of the present invention.

[0043] Figure 8 It is a schematic structural diagram of the clamping column according to a preferred embodiment of the present invention.

[0044] Description of the Reference Numerals:

[0045] Anti-falling device 1

[0046] Detection mechanism 11

[0047] Limit mechanism 12

[0048] Clamping column 121

[0049] Clamping groove 1211

[0050] Clamping component 122

[0051] Protruding rod 1221

[0052] Bending part 12211

[0053] First connecting part 12212

[0054] Second connecting part 12213

[0055] Mounting bracket 1223

[0056] Limiting part 12231

[0057] Limiting block 12232

[0058] First mounting plate 12233

[0059] Second mounting plate 12234

[0060] Hanging rod 12235

[0061] Spring mounting seat 12236

[0062] Groove 12237

[0063] Rotating shaft 1224

[0064] Notch 12441

[0065] Tension spring 1225

[0066] Locking assembly 13

[0067] Locking channel 131

[0068] Lock tongue 132

[0069] Lock base 133

[0070] Connecting rod 14

[0071] Locking rod 141

[0072] Mounting side plate 15

[0073] L-shaped connecting block 16

[0074] Carriage 2

[0075] Battery transfer device 3

[0076] Column 4 Specific implementation manner

[0077] The present invention will be further described below by way of examples, but the present invention is not limited thereto.

[0078] Please also refer to Figures 1 to 8For understanding, an embodiment of the present invention provides a fall prevention device 1, which is used in a battery transfer device 3. The battery transfer device 3 includes a car 2 that can move up and down and is used to carry battery packs. Among them, the fall prevention device 1 includes a detection mechanism 11 and a limit mechanism 12. The detection mechanism 11 is arranged on the battery transfer device 3 and is used to detect whether the state of the downward movement of the car 2 is abnormal; the limit mechanism 12 is connected to the car 2. The limit mechanism 12 has a first state and a second state. When the detection mechanism 11 detects that the state of the downward movement of the car 2 is abnormal, the limit mechanism 12 switches from the first state to the second state to limit the descent of the car 2. When the detection mechanism 11 does not detect the abnormality of the car 2 during the descent of the car 2, the limit mechanism 12 is in the first state and will not affect the lifting and lowering movement of the car 2; when the battery transfer device 3 fails or loses power, the car 2 falls out of control. When the detection mechanism 11 detects the stall of the car 2, the limit mechanism 12 switches to the second state to limit the descent of the car 2, thereby realizing the emergency braking of the car 2. By detecting the motion state of the car 2 by the detection mechanism 11, when the motion state of the car 2 is abnormal, the limit mechanism 12 is controlled to switch from the first state to the second state, so that the limit mechanism 12 can realize the emergency braking of the car 2 during the out-of-control fall of the car 2, which can avoid the situation that the car 2 stalls and causes damage to the battery transfer device 3 or the battery pack, and avoid potential safety hazards.

[0079] In this embodiment, as Figure 2 and Figure 3 shown, the limit mechanism 12 includes a clamping post 121 and a clamping component 122. The clamping component 122 is connected to one side of the car 2. The clamping post 121 is arranged opposite to the clamping component 122 and is located outside the car 2; when the limit mechanism 12 is in the first state, the clamping component 122 is disengaged from the clamping post 121; when the limit mechanism 12 is in the second state, the clamping component 122 cooperates with the clamping post 121 to limit the descent of the car. When the detection mechanism 11 detects that the car 2 is falling normally, the limit mechanism 12 is in the first state, and the clamping component 122 is disengaged from the clamping post 121, so as not to affect the lifting and lowering movement of the car 2; when the detection mechanism 11 detects that the car 2 is in a stall falling state, the limit mechanism 12 switches from the first state to the second state, and the clamping component 122 cooperates with the clamping post 121 to prevent the clamping component 122 connected to the car 2 from moving downward, thereby realizing the emergency braking of the car 2. The emergency braking when the car 2 stalls due to a fault is realized through the cooperation between the clamping post 121 and the clamping component 122, which is safe and reliable.

[0080] In this embodiment, as Figure 2 、 Figure 3 and Figure 8As shown, a clamping groove 1211 is provided on the clamping post 121. The clamping component 122 includes a protruding rod 1221. When the limiting mechanism 12 is in the first state, the protruding rod 1221 is kept at the initial position and is arranged away from the clamping post 121. When the detection mechanism 11 detects that the abnormal state of the downward movement of the car 2 occurs, the protruding rod 1221 can move to cooperate with the clamping groove 1211 so that the limiting mechanism 12 is in the second state. As Figure 2 shown, when the detection mechanism 11 detects that the car 2 is falling normally, the limiting mechanism 12 is in the first state, and the protruding rod 1221 is arranged away from the clamping post 121, thereby releasing the cooperation relationship between the car 2 and the clamping post 121, and the car 2 can descend normally; As Figure 3 shown, when the detection mechanism 11 detects that the car 2 stalls and descends, the limiting mechanism 12 is in the second state, and the protruding rod 1221 cooperates with the clamping groove 1211 to limit the descent of the car 2. The emergency braking of the car 2 is realized through the cooperation between the protruding rod 1221 and the clamping groove 1211, and the braking effect is stable, avoiding the car 2 falling off the battery transfer device 3.

[0081] In this embodiment, as Figures 2 to 6 shown, the clamping component 122 further includes a mounting bracket 1223. The protruding rod 1221 is installed on the mounting bracket 1223 through a rotating shaft 1224. The protruding rod 1221 is configured to be restricted to stay at the initial position and can be released from the restriction to rotate relative to the mounting bracket 1223 so that one end of the protruding rod 1221 extends into the clamping groove 1211 to achieve cooperation. When the limiting mechanism 12 is in the first state, the protruding rod 1221 stays at the initial position and is separated from the clamping groove 1211. When the limiting mechanism 12 is in the second state, the protruding rod 1221 rotates relative to the mounting bracket 1223 to achieve the clamping with the clamping groove 1211. During the process of the limiting mechanism 12 switching between the first state and the second state, the protruding rod 1221 rotates relative to the mounting bracket 1223 to realize the switching of the protruding rod 1221 between the initial position and the clamping position, which is convenient for controlling the position of the protruding rod 1221 relative to the clamping groove 1211.

[0082] In this embodiment, as Figure 4As shown, one end of the extending rod 1221 away from the clamping post 121 is connected to the tension spring 1225. When the extending rod 1221 is configured to be released from the restriction, the tension spring 1225 drives the extending rod 1221 to rotate around the rotating shaft 1224, so that one end of the extending rod 1221 close to the clamping post 121 flips upward to extend into the clamping groove 1211. When the limiting mechanism 12 is in the second state, the extending rod 1221 is released from the restriction, and the tension spring 1225 pulls the end of the extending rod 1221 away from the clamping post 121 upward. Furthermore, one end of the extending rod 1221 close to the clamping post 121 flips upward to achieve clamping with the clamping groove 1211. After the extending rod 1221 is released from the restriction, the rotation of the extending rod 1221 is realized through the tension spring 1225, with high automation and convenient operation. In addition, compared with the way that the extending rod 1221 is vertically inserted into the clamping groove 1211, the possibility that the extending rod 1221 cannot be inserted into the clamping groove 1211 is reduced by extending into the clamping groove 1211 in the way of flipping upward, increasing the reliability.

[0083] During specific implementation, when the detection mechanism 11 detects that the car 2 stalls and falls, the extending rod 1221 is released from the restriction. The extending rod 1221 flips upward from the initial position to fit against the side wall of the clamping post 121 close to the clamping component 122, and slides downward along the side wall. When it reaches the position corresponding to the clamping groove 1211, it can extend into the clamping groove 1211, and continues to flip upward in the clamping groove 1211 to be set in the clamping groove 1211 to achieve clamping with the clamping groove 1211.

[0084] In this embodiment, as Figure 4 shown, one end of the extending rod 1221 close to the clamping post 121 has a bending portion 12211, and the bending portion 12211 is used to extend into the clamping groove 1211. The side surface of the bending portion 12211 close to the clamping post 121 is an arc surface. By arranging the bending portion 12211 at the end of the extending rod 1221, it is convenient for the extending rod 1221 to flip and extend into the clamping groove 1211. In addition, during the process of the extending rod 1221 moving in the direction close to the clamping post 121, especially during the process of the extending rod 1221 sliding downward along the clamping post 121 to extend into the clamping groove 1211, the wear between the extending rod 1221 and the clamping post 121 is reduced through the arc surface, and the possibility of the extending rod 1221 getting stuck during the movement can also be reduced.

[0085] Specifically, the end of the extending rod 1221 close to the clamping post 121 bends downward to form the bending portion 12211.

[0086] In this embodiment, as Figure 4 and Figure 5As shown, the falling prevention device 1 further includes a locking assembly 13 and a connecting rod 14. One end of the connecting rod 14 is connected to the protruding rod 1221, and the other end of the connecting rod 14 is engaged with the locking assembly 13. When the detection mechanism 11 detects that the car 2 is descending normally, the locking assembly 13 is locked to the connecting rod 14, and the protruding rod 1221 is restricted to be in the initial position. When the detection mechanism 11 detects that the state of the car 2 moving downward is abnormal, the locking assembly 13 releases the locking relationship with the connecting rod 14 so that the protruding rod 1221 can be released from the restriction. In other words, when the detection mechanism 11 detects that the car 2 is descending normally, the locking assembly 13 locks the connecting rod 14 to limit it, so that the protruding rod 1221 can be limited to the initial position and not cooperate with the clamping groove 1211. When the detection mechanism 11 detects that the car 2 is descending at a stall, the locking assembly 13 releases the locking of the connecting rod 14, and then releases the restriction on the protruding rod 1221 to release the constraint on the upward flipping movement of the protruding rod 1221, so that the protruding rod 1221 can rotate and extend into the clamping groove 1211. By the linkage between the detection mechanism 11 and the locking assembly 13, the locking relationship between the connecting rod 14 and the locking assembly 13 is controlled, and then the position of the protruding rod 1221 is controlled, so that when the car 2 does not malfunction, the locking assembly 13 limits the protruding rod 1221 to prevent the protruding rod 1221 from flipping upward and affecting the normal lifting and lowering of the car 2. In addition, when the detection mechanism 11 detects that the movement of the car 2 is abnormal, the locking assembly 13 can be controlled in time to release the restriction on the protruding rod 1221, so that the protruding rod 1221 can be flipped and extended into the clamping groove 1211 for cooperation to perform an emergency brake on the car 2.

[0087] In this embodiment, as Figure 2 and Figure 4 shown, a first connection portion 12212 is provided on the protruding rod 1221. The connecting rod 14 is connected to the protruding rod 1221 through the first connection portion 12212. The first connection portion 12212 is located on the side of the rotating shaft 1224 close to the clamping post 121, and the locking assembly 13 is located on the side of the protruding rod 1221 away from the clamping post 121. Since the protruding rod 1221 is installed on the mounting bracket 1223 through the rotating shaft 1224, and the connecting rod 14 is connected to the side of the protruding rod 1221 close to the clamping post 121, when the connecting rod 14 is locked in the locking assembly 13, the connecting rod 14 applies a pulling force in the direction close to the locking assembly 13 to the end of the protruding rod 1221 close to the clamping post 121, so as to prevent the end of the protruding rod 1221 close to the clamping post 121 from flipping upward and limit the protruding rod 1221, and the limiting effect is reliable.

[0088] In this embodiment, as Figure 4As shown, the extension rod 1221 is also provided with a second connection portion 12213, the upper end of the tension spring 1225 is connected to the extension rod 1221 through the second connection portion 12213, the second connection portion 12213 is located on the side of the rotating shaft 1224 away from the clamping column 121, and the lower end of the tension spring 1225 is connected to the mounting bracket 1223. After the locking assembly 13 unlocks the connecting rod 14, the connecting rod 14 can be separated from the locking assembly 13, thereby releasing the restriction on the extension rod 1221, so as to release the constraint on the upward turning movement of the extension rod 1221, and the tension spring 1225 pulls the end of the extension rod 1221 away from the clamping column 121 to move downward, and since the middle part of the extension rod 1221 is fixed to the mounting bracket 1223 through the rotating shaft 1224, it can drive the end of the extension rod 1221 close to the clamping column 121 to turn upward, and the linkage is reliable.

[0089] Specifically, a hook hole is provided at one end of the extension rod 1221 away from the clamping column 121 to form a second connection portion 12213, and the upper end of the tension spring 1225 is hooked in the hook hole. A tension spring mounting seat 12236 is installed at the bottom of the mounting frame 1223, and a hook rod 12235 extending toward the direction close to the tension spring 1225 is connected to the lower end of the tension spring mounting seat 12236. The lower end of the tension spring 1225 is hooked on the hook rod 12235 for easy installation and replacement, and a limit portion is provided at the end of the hook rod 12235 to prevent the tension spring 1225 from being separated from the hook rod 12235. Of course, in other examples, the upper and lower ends of the tension spring 1225 can be connected to the extension rod 1221 and the mounting frame 1223 respectively through other connection structures.

[0090] In this embodiment, if Figure 4 As shown, the locking assembly 13 includes a locking channel 131 and a locking tongue 132. When the detection mechanism 11 detects that the state of the car 2 moving downward is abnormal, the locking tongue 132 leaves the locking channel 131 so that the connecting rod 14 can be separated from the locking assembly 13. The movement state of the locking tongue 132 is controlled by the detection signal of the detection mechanism 11 to realize the opening and closing of the locking channel 131, thereby realizing that the connecting rod 14 can be separated from the locking assembly 13 or locked in the locking assembly 13, with fast response and high degree of automation, and it is convenient to control the movement state of the extension rod 1221.

[0091] Specifically, the locking assembly 13 further includes a lock base 133, on which a locking channel 131 is formed with an opening facing the connecting rod 14, and a locking tongue 132 is disposed at the opening and is rotatably connected to the lock base 133, so that the rotation of the locking tongue 132 can realize the opening and closing of the locking channel 131. More specifically, the detection mechanism 11 controls the rotation of the locking tongue 132 in a linkage manner, and when the detection mechanism 11 detects that the car 2 descends abnormally, the locking tongue 132 is controlled to rotate to open the locking channel 131.

[0092] In this embodiment, ifFigure 5 As shown in the figure, a locking rod 141 is provided at one end of the connecting rod 14 close to the locking assembly 13. The locking rod 141 is used to be locked in the locking channel 131 to form the locking of the connecting rod 14.

[0093] In this embodiment, as Figure 4 shown, the mounting bracket 1223 includes a limiting portion 12231. The limiting portion 12231 is used to restrict the degree of freedom of the protruding rod 1221 from flipping upwards. By providing the limiting portion 12231 on the mounting bracket 1223, it is possible to prevent the protruding rod 1221 from flipping upwards excessively and thus being unable to cooperate with the clamping groove 1211.

[0094] In this embodiment, as Figure 8 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 providing multiple clamping grooves 1211 on the clamping post 121, as long as the protruding rod 1221 slides to a position corresponding to one of the clamping grooves 1211, timely clamping can be achieved, with a fast response.

[0095] In this embodiment, as Figure 2 , Figure 5 , Figure 6 and Figure 7 shown, a limiting block 12232 is fixed on the mounting bracket 1223. The rotating shaft 1224 passes through the mounting bracket 1223 and the protruding rod 1221. A notch 12441 is formed in the radial direction of the rotating shaft 1224, and the limiting block 12232 is snapped into the notch 12441. By limiting the rotating shaft 1224 with the limiting block 12232, the degree of freedom of the rotating shaft 1224 along its axial direction is restricted, thereby preventing the rotating shaft 1224 from disengaging from the mounting bracket 1223 and also preventing the rotating shaft 1224 from shaking during the relative rotation of the protruding rod 1221 with respect to the rotating shaft 1224, which may affect the flipping effect of the protruding rod 1221.

[0096] Specifically, as Figures 2 to 6 shown, the mounting bracket 1223 includes a first mounting plate 12233 and a second mounting plate 12234. The first mounting plate 12233 and the second mounting plate 12234 are arranged oppositely and enclose a receiving space. The protruding rod 1221, the connecting rod 14, and the locking assembly 13 are all accommodated in the receiving space. Among them, the upper end of the first mounting plate 12233 is bent towards the direction close to the second mounting plate 12234 to connect the second mounting plate 12234. The bent plate at the upper end of the first mounting plate 12233 forms the limiting portion 12231, and the upper end of the protruding rod 1221 is arranged to fit against the limiting portion 12231. A slot 12237 is also provided on the second mounting plate 12234 to facilitate observing the internal situation of the mounting bracket 1223.

[0097] More specifically, the extending rod 1221 is disposed between the first mounting plate 12233 and the second mounting plate 12234. The rotating shaft 1224 sequentially penetrates through the first mounting plate 12233, the extending rod 1221, and the second mounting plate 12234. A notch 12441 is provided at the end of the rotating shaft 1224 extending out of the second mounting plate 12234. The limiting block 12232 is fixedly installed on the outer wall of the second mounting plate 12234 away from the first mounting plate 12233 and is embedded in the notch 12441 to limit the rotating shaft 1224.

[0098] In this embodiment, as Figure 4 and Figure 5 shown, the mounting bracket 1223 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 1223 is connected to the mounting side plate 15 through the L-shaped mounting block 16, and the mounting stability is high.

[0099] In this embodiment, the detection mechanism 11 is a laser rangefinder. The laser rangefinder is used to detect the displacement change amount of the car 2 within a preset time interval. When the measured displacement change amount is greater than the preset displacement change amount, the limiting mechanism 12 switches from the first state to the second state. Judging whether the car 2 has a fault during its descent according to the displacement change amount measured by the laser rangefinder, and the reliability is high.

[0100] During specific implementation, when the detection mechanism 11 detects that the displacement change amount of the car 2 within the preset time interval is within the preset displacement change amount range, it is determined that the car 2 is lifting and lowering normally. At this time, the locking assembly 13 closes the locking channel 131 to lock the connecting rod 14, and further restricts the upward flipping movement of the extending rod 1221, so that the extending rod 1221 can remain in the initial position and disengage from the clamping groove 1211, enabling the car 2 to lift and lower normally.

[0101] When the detection mechanism 11 detects that the displacement change amount of the car 2 within the preset time interval is within the preset displacement change amount, and it is determined that the descent of the car 2 is abnormal, the linkage locking assembly 13 opens the locking channel 131 to unlock the connecting rod 14, and further releases the restriction on the extending rod 1221. The tension spring 1225 can pull the end of the extending rod 1221 away from the clamping post 121 downward, and then drive the end of the extending rod 1221 close to the clamping post 121 to flip upward to fit against the side wall of the clamping post 121 close to the clamping assembly 122, and slide downward along the side wall to reach a position corresponding to the clamping groove 1211. At this time, it can extend into the clamping groove 1211 and continue to flip upward in the clamping groove 1211 to be arranged in the clamping groove 1211 to achieve clamping with the clamping groove 1211, so as to realize the clamping of the car 2 and the clamping post 121, and further restrict the continued descent of the car 2.

[0102] In other embodiments, the detection mechanism 11 may also adopt other sensing devices, such as an acceleration sensor, etc.

[0103] As Figure 1 shown, an embodiment of the present invention also provides a battery transfer device 3. The battery transfer device 3 includes a car 2, a column 4, and an anti-falling device 1. There are at least two columns 4, which are respectively located on both sides of the car 2. The car 2 is connected to the column 4 and can move up and down relative to the column 4. The detection mechanism 11 is installed at the upper end of the column 4 on one side of the car 2 and corresponds to the detection unit on the car 2, so that the movement state of the car 2 can be judged based on the detection unit. One end of the limiting mechanism 12 is connected to the car 2, and the other end is installed on the column 4 on the other side of the car 2. Specifically, the clamping column 121 is fixedly connected to the column 4 on the other side of the car 2, and the clamping assembly 122 is installed on the outer side of the car 2.

[0104] 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. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An anti-falling device is used in a battery transfer device. The battery transfer device includes a car that can move up and down and is used to carry battery packs, and is characterized in that The anti - falling device includes: A detection mechanism, which is arranged on the battery transfer device and is used to detect whether the abnormal state of the downward movement of the car occurs; A limiting mechanism, the limiting mechanism is connected to the car, the limiting mechanism has a first state and a second state. When the detection mechanism detects that the state of the downward movement of the car is abnormal, the limiting mechanism switches 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 mechanism 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 mechanism is in the first state, the clamping component is arranged away from the clamping post; when the limiting mechanism 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, The clamping post is provided with a clamping groove, and the clamping component includes a protruding rod; The protruding rod is configured that when the limiting mechanism is in the first state, the protruding rod remains in the initial position and is arranged away from the clamping post; when the detection mechanism detects that the state of the downward movement of the car is abnormal, the protruding rod can move to cooperate with the clamping groove so that the limiting mechanism is in the second state; 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 post.

4. The anti-falling device according to claim 3, characterized in that, The clamping component further includes a mounting bracket, the protruding rod is installed on the mounting bracket through a rotating shaft, and the protruding rod is configured to be restricted to remain in the initial position, and can be unrestricted to rotate relative to the mounting bracket so that one end of the protruding rod extends into the clamping groove to achieve cooperation; Preferably, a limiting block is fixed on the mounting bracket, the rotating shaft penetrates through the mounting bracket and the protruding rod, and a notch is formed in the radial direction of the rotating shaft, and the limiting block is clamped into the notch.

5. The anti-falling device according to claim 4, characterized in that, One end of the protruding rod far from the clamping post is connected to a tension spring. When the protruding rod is configured to be unrestricted, the tension spring drives the protruding rod to rotate around the rotating shaft so that one end of the protruding rod close to the clamping post turns upward to extend into the clamping groove.

6. The anti-falling device according to claim 5, wherein, One end of the protruding rod close to the clamping post has a bent portion, and the bent portion is used to extend into the clamping groove, and one side surface of the bent portion close to the clamping post is an arc surface; Preferably, the mounting bracket includes a limiting portion, and the limiting portion is used to restrict the degree of freedom of the upward turning of the protruding rod.

7. The anti-falling device according to claim 5, characterized in that, The anti - falling device further includes a locking component and a connecting rod, one end of the connecting rod is connected to the protruding rod, and the other end of the connecting rod cooperates with the locking component; When the detection mechanism detects that the car descends normally, the locking component is locked with the connecting rod, and the protruding rod is restricted to be in the initial position; when the detection mechanism detects that the state of the downward movement of the car is abnormal, the locking component releases the locking relationship with the connecting rod so that the protruding rod can be unrestricted.

8. The anti-falling device according to claim 7, wherein, The extending rod is provided with a first connecting portion, and the connecting rod is connected to the extending rod through the first connecting portion. The first connecting portion is located on one side of the rotating shaft close to the clamping column, and the locking assembly is located on one side of the extending rod away from the clamping column; And / or, the locking assembly includes a locking channel and a locking tongue. When the detection mechanism detects an abnormal state of the downward movement of the car, the locking tongue leaves the locking channel so that the connecting rod can disengage from the locking assembly.

9. The anti-falling device according to any one of claims 1-8, characterized in that, The detection mechanism is a laser rangefinder, and the laser rangefinder is used to detect the displacement change amount of the car within a preset time interval. When the measured displacement change amount is greater than the preset displacement change amount, the limiting mechanism switches from the first state to the second state.

10. A battery transfer device, characterized in that, The battery transfer device includes a fall prevention device according to any one of claims 1-9.

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