Anti-falling device and battery transfer equipment comprising same

Abstract

The utility model discloses an anti-falling device and battery transfer equipment comprising the anti-falling device, the battery transfer equipment comprises a lift car which can move up and down and is 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 utility model relates to an anti-falling device and battery transport equipment comprising the same. Background Art

[0002] When replacing batteries for existing electric vehicles, it is usually necessary to remove the depleted 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. The charging rack usually stores batteries in a stacked form, so when the battery transport equipment takes out or places the batteries, it is necessary not only to move the car in the horizontal direction, but also to move the car in the vertical direction.

[0003] If the car fails, stalls or loses power during vertical movement, it will cause the car to fall out of control or even free fall, thus damaging the battery transport equipment. The battery pack on the battery transport equipment will also be damaged, and in severe cases, it may even cause deflagration and explosion after the battery pack is damaged. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the battery transfer equipment lacks safety protection after a malfunction or power failure, and may fall out of control, causing damage to the battery transfer equipment and the battery pack, thereby creating a safety hazard. An anti-fall device and a battery transfer equipment containing the same are provided.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides an anti-falling device for use in a battery transport device, wherein the battery transport device comprises a lift that can be lifted and moved and is used to carry a battery pack, and the anti-falling device comprises:

[0007] A detection mechanism, which is arranged on the battery transfer device and is used to detect whether there is any abnormality in the downward movement of the car;

[0008] A limiting mechanism is connected to the car, and the limiting mechanism has a first state and a second state. When a detection mechanism detects that an abnormality occurs in the downward movement of the car, the limiting mechanism switches from the first state to the second state to limit the descent of the car.

[0009] In the present scheme, the above-mentioned structural form is adopted, and the movement state of the car is detected by a detection mechanism, so that when the movement state of the car is abnormal, the limit mechanism is controlled to switch from the first state to the second state, so that when the car falls out of control, the limit mechanism can realize emergency braking of the car, which can avoid the situation where the battery transfer equipment or battery pack is damaged due to car stalling, and avoid safety hazards.

[0010] Preferably, the limiting mechanism comprises a clamping column and a clamping assembly, the clamping assembly is connected to one side of the car, and the clamping column and the clamping assembly are arranged opposite to each other and are located outside the car;

[0011] When the limiting mechanism is in the first state, the clamping assembly is separated from the clamping column; when the limiting mechanism is in the second state, the clamping assembly cooperates with the clamping column to limit the descent of the car.

[0012] In this solution, the above-mentioned structural form is adopted, and emergency braking is achieved when the car stalls and falls due to a malfunction through the cooperation between the clamping column and the clamping assembly, which is safe and reliable.

[0013] Preferably, the clamping column is provided with a clamping groove, and the clamping assembly comprises a protruding rod;

[0014] The extension rod is configured so that when the limiting mechanism is in the first state, the extension rod remains in the initial position and is disengaged from the locking column setting; when the detection mechanism detects that the downward movement of the car is abnormal, the extension rod can be moved to cooperate with the locking groove to make the limiting mechanism in the second state.

[0015] In this solution, the above-mentioned structural form is adopted, and the emergency braking of the car is achieved through the cooperation between the extension rod and the clamping groove. The braking effect is stable and the car is prevented from falling off the battery transfer equipment.

[0016] Preferably, the clamping assembly also includes a mounting frame, the extending rod is mounted on the mounting frame via a rotating shaft, and the extending rod is configured to be restricted and maintained at the initial position, and to be released from the restriction and rotated relative to the mounting frame so that one end of the extending rod extends into the clamping slot to achieve cooperation.

[0017] In the present solution, the above-mentioned structural form is adopted. During the switching process of the limiting mechanism between the first state and the second state, the extending rod rotates relative to the mounting frame to realize the switching of the extending rod between the initial position and the locking position, thereby facilitating the control of the position of the extending rod relative to the locking groove.

[0018] Preferably, one end of the extension rod away from the clamping column is connected to a tension spring, and when the extension rod is configured to release the restriction, the tension spring drives the extension rod to rotate around the rotating shaft so that the end of the extension rod close to the clamping column flips upward to extend into the clamping groove.

[0019] In this solution, the above structure is adopted, and after the extension rod is released from the restriction, the extension rod is rotated by the tension spring, which has a high degree of automation and is easy to operate. In addition, by turning upward to extend into the card slot, compared with the method of vertically inserting the extension rod into the card slot, the possibility of the extension rod failing to insert into the card slot is reduced, and reliability is increased.

[0020] Preferably, one end of the extending rod close to the clamping column has a bending portion, the bending portion is used to extend into the clamping groove, and a side surface of the bending portion close to the clamping column is an arc surface.

[0021] In the present solution, the above-mentioned structural form is adopted, and a bending portion is provided at the end of the extending rod to facilitate the extending rod to flip and extend into the locking groove; in addition, in the process of the extending rod moving toward the locking column, especially in the process of the extending rod sliding downward in contact with the locking column so as to extend into the locking groove, the wear between the extending rod and the locking column is reduced by the arc surface, and the possibility of obstruction of the extending rod during movement can also be reduced.

[0022] Preferably, the anti-falling device further comprises a locking assembly and a connecting rod, one end of the connecting rod is connected to the extension rod, and the other end of the connecting rod cooperates with the locking assembly;

[0023] When the detection mechanism detects that the car is descending normally, the locking assembly is locked and connected to the connecting rod, and the extension rod is restricted and is in the initial position; when the detection mechanism detects that the downward movement of the car is abnormal, the locking assembly and the connecting rod are released from the locking relationship so that the extension rod can be released from the restriction.

[0024] In the present scheme, the above-mentioned structural form is adopted, and the locking relationship between the connecting rod and the locking assembly is controlled by the linkage between the detection mechanism and the locking assembly, thereby controlling the position of the extension rod, so that when there is no malfunction in the car, the locking assembly limits the extension rod to prevent the extension rod from flipping upward and affecting the normal lifting of the car; and when the detection mechanism detects that there is an abnormality in the movement of the car, the locking assembly can be controlled in time to release the restriction on the extension rod, so that the extension rod can be flipped and extended into the card slot to cooperate in emergency braking of the car.

[0025] Preferably, a first connecting portion is provided on the extension rod, the connecting rod is connected to the extension rod via the first connecting portion, the first connecting portion is located on a side of the rotating shaft close to the clamping column, and the locking assembly is located on a side of the extension rod away from the clamping column.

[0026] In the present solution, the above-mentioned structural form is adopted. When the connecting rod is locked in the locking assembly, the connecting rod applies a pulling force close to the locking assembly direction to the end of the extending rod close to the clamping column to prevent the end of the extending rod close to the clamping column from flipping upward, thereby limiting the extending rod and the limiting effect is reliable.

[0027] Preferably, the locking assembly includes a locking channel and a locking tongue, and when the detection mechanism detects that the downward movement of the car is abnormal, the locking tongue leaves the locking channel to allow the connecting rod to be detached from the locking assembly.

[0028] In the present scheme, the above-mentioned structural form is adopted, and the movement state of the lock tongue is controlled by the detection signal of the detection mechanism to realize the opening and closing of the locking channel, and then the connecting rod can be disengaged from the locking assembly or locked in the locking assembly. It has a fast response, a high degree of automation, and is easy to control the movement state of the extension rod.

[0029] Preferably, the mounting bracket includes a limiting portion, and the limiting portion is used to restrict the freedom of the extension rod to flip upward.

[0030] In the present solution, the above-mentioned structural form is adopted, and a limiting portion is provided on the mounting frame to prevent the extension rod from excessively turning upward and failing to cooperate with the clamping groove.

[0031] Preferably, there are a plurality of the clamping grooves, and the plurality of the clamping grooves are arranged at intervals along a height direction of the clamping column.

[0032] In this solution, the above-mentioned structural form is adopted, and a plurality of engaging grooves are arranged on the engaging column. As long as the extension rod slides to a position corresponding to one of the engaging grooves, timely engaging can be achieved, and the response is fast.

[0033] Preferably, a limit block is fixed on the mounting frame, the rotating shaft passes through the mounting frame and the extension rod, a cut is opened in the radial direction of the rotating shaft, and the limit block is inserted into the cut.

[0034] In this solution, the above-mentioned structural form is adopted to limit the rotating shaft by a limit block to constrain the freedom of the rotating shaft along its axial direction, thereby preventing the rotating shaft from shaking during the rotation of the extension rod relative to the rotating shaft, thereby affecting the flipping effect of the extension rod.

[0035] Preferably, the detection mechanism is a laser rangefinder, which is used to detect the displacement change of the car within a preset time interval. When the measured displacement change is greater than the preset displacement change, the limit mechanism switches from the first state to the second state.

[0036] In this solution, the above-mentioned structural form is adopted to judge whether a failure occurs in the descent of the car based on the displacement change measured by the laser rangefinder, and the reliability is high.

[0037] The utility model also provides a battery transport device in an embodiment, and the battery transport device includes the anti-falling device as described above.

[0038] The positive and progressive effects of the utility model are:

[0039] The anti-fall device in the utility model detects the movement 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 movement state of the car is abnormal, so that the limit mechanism can realize emergency braking of the car during the uncontrolled falling of the car, and can avoid the situation where the battery transfer equipment or battery pack is damaged due to the stalling of the car, thereby avoiding safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic structural diagram of a battery transport device according to a preferred embodiment of the utility model.

[0041] Figure 2 This is a structural schematic diagram of a preferred embodiment of the utility model when the limiting mechanism is in the first state.

[0042] Figure 3 This is a structural schematic diagram of a preferred embodiment of the utility model when the limiting mechanism is in the second state.

[0043] Figure 4 It is a structural schematic diagram of a clamping assembly of a preferred embodiment of the utility model.

[0044] Figure 5 It is a partial structural schematic diagram of a clamping assembly of a preferred embodiment of the utility model.

[0045] Figure 6 It is a partial cross-sectional view of a clamping assembly according to a preferred embodiment of the utility model.

[0046] Figure 7 This is a schematic diagram of the installation of the rotating shaft of a preferred embodiment of the utility model.

[0047] Figure 8 This is a schematic structural diagram of a clamping column according to a preferred embodiment of the utility model.

[0048] Description of reference numerals:

[0049] Fall prevention device 1

[0050] Testing agency 11

[0051] Limiting mechanism 12

[0052] Card post 121

[0053] Card slot 1211

[0054] Card assembly 122

[0055] Extension rod 1221

[0056] Bending part 12211

[0057] First connection part 12212

[0058] Second connection portion 12213

[0059] Mounting frame 1223

[0060] Limiting part 12231

[0061] Limit block 12232

[0062] First mounting plate 12233

[0063] Second mounting plate 12234

[0064] Hook-up rod 12235

[0065] Extension spring mounting seat 12236

[0066] Slot 12237

[0067] Shaft 1224

[0068] Cut 12441

[0069] Extension spring 1225

[0070] Locking assembly 13

[0071] Lock channel 131

[0072] Lock tongue 132

[0073] Lock base 133

[0074] Connecting rod 14

[0075] Locking rod 141

[0076] Install side panel 15

[0077] L-type connection block 16

[0078] Car 2

[0079] Battery transport equipment 3

[0080] Column 4 DETAILED DESCRIPTION

[0081] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0082] Please combine Figures 1 to 8 It is understood that the embodiment of the utility model provides an anti-falling device 1, which is used in a battery transporting device 3. The battery transporting device 3 includes a car 2 that can be lifted and moved and is used to carry a battery pack, wherein the anti-falling device 1 includes a detection mechanism 11 and a limit mechanism 12. The detection mechanism 11 is arranged on the battery transporting device 3 and is used to detect whether the state of the car 2 moving downward is abnormal; the limit mechanism 12 is connected to the car 2, and the limit mechanism 12 has a first state and a second state. When the detection mechanism 11 detects that the state of the car 2 moving downward 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 moving of the car 2; when the battery transporting device 3 fails or loses power, the car 2 falls out of control, and when the detection mechanism 11 detects that the car 2 is stalled, 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. The movement state of the car 2 is detected by the detection mechanism 11, so that when the movement 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 achieve emergency braking of the car 2 during the uncontrolled falling of the car 2, thereby avoiding the situation where the car 2 stalls and causes damage to the battery transfer equipment 3 or the battery pack, and avoiding safety hazards.

[0083] In this embodiment, if Figure 2 and Figure 3 As shown, the limiting mechanism 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 limiting mechanism 12 is in the first state, the clamping assembly 122 is separated from the clamping column 121; when the limiting mechanism 12 is in the second state, the clamping assembly 122 cooperates with the clamping column 121 to limit the car from falling. When the detection mechanism 11 detects that the car 2 is falling normally, the limiting mechanism 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 detection mechanism 11 detects that the car 2 is in a stalled falling state, the limiting mechanism 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.

[0084] In this embodiment, if Figure 2 , Figure 3 and Figure 8 As shown, the clamping column 121 is provided with a clamping groove 1211, and the clamping assembly 122 includes a protruding rod 1221; the protruding rod 1221 is configured so that when the limiting mechanism 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 detection mechanism 11 detects that the downward movement of the car 2 is abnormal, the protruding rod 1221 can move to cooperate with the clamping groove 1211 to make the limiting mechanism 12 in the second state. Figure 2 As shown, when the detection mechanism 11 detects that the car 2 is falling normally, the limit mechanism 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 descend normally; Figure 3 As shown, when the detection mechanism 11 detects that the car 2 is stalled and descending, the limiting mechanism 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.

[0085] In this embodiment, if Figures 2 to 6 As shown, the clamping assembly 122 also includes a mounting frame 1223, and the extension rod 1221 is mounted on the mounting frame 1223 through a rotating shaft 1224. The extension rod 1221 is configured to be restricted and maintained at the initial position, and to be released from the restriction and rotate relative to the mounting frame 1223 so that one end of the extension rod 1221 extends into the clamping groove 1211 to achieve matching. When the limiting mechanism 12 is in the first state, the extension rod 1221 remains in the initial position and is disengaged from the clamping groove 1211; when the limiting mechanism 12 is in the second state, the extension rod 1221 rotates relative to the mounting frame 1223 to achieve clamping with the clamping groove 1211. In the process of switching between the first state and the second state of the limiting mechanism 12, the extension rod 1221 rotates relative to the mounting frame 1223 to achieve switching between the initial position and the clamping position of the extension rod 1221, so as to facilitate the control of the position of the extension rod 1221 relative to the clamping groove 1211.

[0086] In this embodiment, if Figure 4As shown, one end of the extension rod 1221 away from the clamping column 121 is connected to the tension spring 1225. When the extension rod 1221 is configured to release the restriction, the tension spring 1225 drives the extension rod 1221 to rotate around the rotation axis 1224 so that the end of the extension rod 1221 close to the clamping column 121 is turned upward to extend into the clamping groove 1211. When the limiting mechanism 12 is in the second state, the extension rod 1221 is released from the restriction, and the tension spring 1225 pulls the end of the extension rod 1221 away from the clamping column 121 to move upward, thereby realizing the end of the extension rod 1221 close to the clamping column 121 to turn upward to achieve the clamping with the clamping groove 1211. After the extension rod 1221 is released from the restriction, the extension rod 1221 is rotated by the tension spring 1225, which has a high degree of automation and is easy to operate. In addition, by extending into the engaging slot 1211 in an upwardly flipping manner, compared with a manner in which the extending rod 1221 is vertically inserted into the engaging slot 1211, the possibility of the extending rod 1221 failing to be inserted into the engaging slot 1211 is reduced, thereby increasing reliability.

[0087] During the specific implementation, the detection mechanism 11 detects that the car 2 stalls and falls, and the extension rod 1221 releases the restriction. The extension rod 1221 flips upward from the initial position to fit the side wall of the clamping column 121 close to the clamping assembly 122, and slides downward to a position corresponding to the clamping groove 1211 in line with the side wall. It can then extend into the clamping groove 1211 and continue to flip upward in the clamping groove 1211 to be placed in the clamping groove 1211 to achieve clamping with the clamping groove 1211.

[0088] In this embodiment, if Figure 4 As shown, the end of the extension rod 1221 close to the clamping column 121 has a bent portion 12211, and the bent portion 12211 is used to extend into the clamping groove 1211, and the side surface of the bent portion 12211 close to the clamping column 121 is an arc surface. By providing the bent portion 12211 at the end of the extension rod 1221, it is convenient for the extension rod 1221 to flip and extend into the clamping groove 1211; in addition, in the process of the extension rod 1221 moving toward the clamping column 121, especially in the process of the extension rod 1221 sliding downward against the clamping column 121 so as to extend into the clamping groove 1211, the arc surface can reduce the wear between the extension rod 1221 and the clamping column 121, and can also reduce the possibility of the extension rod 1221 being blocked during the movement.

[0089] Specifically, the end of the extending rod 1221 close to the clamping column 121 is bent downward to form a bent portion 12211 .

[0090] In this embodiment, if Figure 4 and Figure 5As shown, the anti-fall device 1 also includes a locking assembly 13 and a connecting rod 14, one end of the connecting rod 14 is connected to the extending rod 1221, and the other end of the connecting rod 14 cooperates with the locking assembly 13; when the detection mechanism 11 detects that the car 2 is descending normally, the locking assembly 13 and the connecting rod 14 are locked and connected, and the extending rod 1221 is restricted and is in the initial position; when the detection mechanism 11 detects that the downward movement of the car 2 is abnormal, the locking assembly 13 and the connecting rod 14 are released from the locking relationship so that the extending 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 extension rod 1221 can be limited to the initial position without cooperating with the clamping groove 1211; when the detection mechanism 11 detects that the car 2 is stalling and descending, the locking assembly 13 releases the lock on the connecting rod 14, and then releases the restriction on the extension rod 1221, so as to release the constraint on the upward turning movement of the extension rod 1221, so that the extension rod 1221 can rotate and extend into the clamping groove 1211. The locking relationship between the connecting rod 14 and the locking assembly 13 is controlled by the linkage between the detection mechanism 11 and the locking assembly 13, and then the position of the extension rod 1221 is controlled, so that when there is no fault in the car 2, the locking assembly 13 limits the extension rod 1221 to prevent the extension rod 1221 from turning upward and affecting the normal lifting of the car 2. In addition, when the detection mechanism 11 detects abnormal movement of the car 2, it can promptly control the locking assembly 13 to release the restriction on the extension rod 1221, so that the extension rod 1221 can be flipped and extended into the clamping groove 1211 to cooperate with the car 2 for emergency braking.

[0091] In this embodiment, if Figure 2 and Figure 4 As shown, the extension rod 1221 is provided with a first connection portion 12212, and the connection rod 14 is connected to the extension rod 1221 through the first connection portion 12212. The first connection portion 12212 is located on the side of the rotation shaft 1224 close to the clamping column 121, and the locking assembly 13 is located on the side of the extension rod 1221 away from the clamping column 121. Since the extension rod 1221 is installed on the mounting frame 1223 through the rotation shaft 1224, the connection rod 14 is connected to the side of the extension rod 1221 close to the clamping column 121. When the connection rod 14 is locked in the locking assembly 13, the connection rod 14 applies a pulling force close to the locking assembly 13 to the end of the extension rod 1221 close to the clamping column 121, so as to prevent the end of the extension rod 1221 close to the clamping column 121 from turning upward, and the extension rod 1221 is limited, and the limiting effect is reliable.

[0092] In this embodiment, if 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] In this embodiment, if Figure 5 As shown, a locking rod 141 is provided at one end of the connecting rod 14 close to the locking assembly 13 , and the locking rod 141 is used to be locked in the locking channel 131 to lock the connecting rod 14 .

[0097] In this embodiment, if Figure 4 As shown, the mounting frame 1223 includes a limiting portion 12231, which is used to restrict the freedom of the extension rod 1221 to flip upward. By arranging the limiting portion 12231 on the mounting frame 1223, the extension rod 1221 is prevented from excessively flipping upward and failing to cooperate with the clamping slot 1211.

[0098] In this embodiment, if Figure 8 As shown, there are multiple clamping grooves 1211, and the multiple clamping grooves 1211 are arranged at intervals along the height direction of the clamping column 121. Multiple clamping grooves 1211 are arranged on the clamping column 121, and timely clamping can be achieved as long as the extension rod 1221 slides to a position corresponding to one of the clamping grooves 1211, and the response is fast.

[0099] In this embodiment, if Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, a limit block 12232 is fixed on the mounting frame 1223, the rotating shaft 1224 penetrates through the mounting frame 1223 and the extension rod 1221, and a notch 12441 is provided in the radial direction of the rotating shaft 1224, and the limit block 12232 is inserted into the notch 12441. The limit block 12232 limits the rotating shaft 1224 to constrain the degree of freedom of the rotating shaft 1224 along its axial direction, thereby preventing the rotating shaft 1224 from being separated from the mounting frame 1223, and also preventing the rotating shaft 1224 from shaking during the rotation of the extension rod 1221 relative to the rotating shaft 1224, thereby affecting the effect of the extension rod 1221 turning over.

[0100] Specifically, Figures 2 to 6 As shown, the mounting frame 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 opposite to each other and enclosed to form an accommodation space. The extension rod 1221, the connecting rod 14 and the locking assembly 13 are all accommodated in the accommodation space. Among them, the upper end of the first mounting plate 12233 is bent toward 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 a limiting portion 12231, and the upper end of the extension rod 1221 is used to fit the limiting portion 12231. The second mounting plate 12234 is also provided with a slot 12237 to facilitate observation of the internal situation of the mounting frame 1223.

[0101] More specifically, the extending rod 1221 is placed between the first mounting plate 12233 and the second mounting plate 12234, and the rotating shaft 1224 passes through the first mounting plate 12233, the extending rod 1221 and the second mounting plate 12234 in sequence. The end of the rotating shaft 1224 extending out of the second mounting plate 12234 is provided with a cutout 12441, and the limit 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 cutout 12441 to limit the rotating shaft 1224.

[0102] In this embodiment, if Figure 4 and Figure 5 As shown, the mounting frame 1223 is installed on one side of the car 2 through the mounting side plate 15, and at least one of the upper and lower ends of the mounting frame 1223 is connected to the mounting side plate 15 through an L-shaped mounting block 16, so the installation stability is high.

[0103] In this embodiment, the detection mechanism 11 is a laser rangefinder, which is used to detect the displacement change of the car 2 within a preset time interval. When the measured displacement change is greater than the preset displacement change, the limit mechanism 12 switches from the first state to the second state. It is determined whether the descent of the car 2 fails based on the displacement change measured by the laser rangefinder, which has high reliability.

[0104] In a specific implementation, when the detection mechanism 11 detects that the displacement change of the car 2 within a preset time interval is within a preset displacement change range, it is determined that the car 2 is rising and falling normally. At this time, the locking assembly 13 closes the locking channel 131 to lock the connecting rod 14, thereby constraining the upward flipping movement of the extension rod 1221, so that the extension rod 1221 can remain in the initial position and disengage from the clamping groove 1211, so that the car 2 can rise and fall normally.

[0105] When the detection mechanism 11 detects that the displacement change of the car 2 within the preset time interval is within the preset displacement change, it is determined that the descent of the car 2 is abnormal, and the linkage locking assembly 13 opens the locking channel 131 to unlock the connecting rod 14, thereby releasing the restriction on the extension rod 1221, and the tension spring 1225 can pull the end of the extension rod 1221 away from the clamping column 121 to move downward, thereby driving the end of the extension rod 1221 close to the clamping column 121 to flip upward to fit the side wall of the clamping column 121 close to the clamping assembly 122, and when it slides downward to a position corresponding to the clamping groove 1211 in fits with the side wall, it can extend into the clamping groove 1211, and continue to flip upward in the clamping groove 1211 to be placed in the clamping groove 1211 to achieve clamping with the clamping groove 1211, so as to achieve the clamping of the car 2 with the clamping column 121, thereby limiting the further descent of the car 2.

[0106] In other embodiments, the detection mechanism 11 may also adopt other sensing devices, such as an acceleration sensor.

[0107] like Figure 1 As shown, the embodiment of the utility model further provides a battery transport device 3, which includes a car 2, a column 4 and an anti-fall 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 columns 4 and can be raised and lowered relative to the columns 4. The detection mechanism 11 is installed at the upper end of the column 4 located 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 limit 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 outside of the car 2.

[0108] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. An anti-falling device, used in a battery transport device, wherein the battery transport device comprises a liftable and movable car for carrying a battery pack, characterized in that: The anti-fall device comprises: A detection mechanism, which is arranged on the battery transfer device and is used to detect whether there is any abnormality in the downward movement of the car; A limiting mechanism is connected to the car, and the limiting mechanism has a first state and a second state. When a detection mechanism detects that an abnormality occurs in the downward movement of the car, 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 column and a clamping assembly, wherein the clamping assembly is connected to one side of the car, and the clamping column is arranged opposite to the clamping assembly and is located outside the car; When the limiting mechanism is in the first state, the clamping assembly is separated from the clamping column; when the limiting mechanism is in the second state, the clamping assembly cooperates with the clamping column to limit the descent of the car.

3. The anti-falling device according to claim 2, characterized in that: The clamping column is provided with a clamping groove, and the clamping assembly includes a protruding rod; The extension rod is configured so that when the limiting mechanism is in the first state, the extension rod remains in the initial position and is disengaged from the locking column setting; when the detection mechanism detects that the downward movement of the car is abnormal, the extension rod can be moved to cooperate with the locking groove to make the limiting mechanism in the second state.

4. The anti-falling device according to claim 3, characterized in that: The clamping assembly also includes a mounting frame, and the extending rod is mounted on the mounting frame via a rotating shaft. The extending rod is configured to be restricted and maintained at the initial position, and to be released from the restriction and rotated relative to the mounting frame so that one end of the extending rod extends into the clamping slot to achieve engagement.

5. The anti-falling device according to claim 4, characterized in that: One end of the extension rod away from the clamping column is connected to a tension spring. When the extension rod is configured to release the restriction, the tension spring drives the extension rod to rotate around the rotating shaft so that the end of the extension rod close to the clamping column flips upward to extend into the clamping slot.

6. The anti-falling device according to claim 5, characterized in that: One end of the extending rod close to the clamping column has a bending portion, and the bending portion is used to extend into the clamping groove, and a side surface of the bending portion close to the clamping column is an arc surface.

7. The anti-falling device according to claim 5, characterized in that: The anti-falling device further comprises a locking assembly and a connecting rod, one end of the connecting rod is connected to the extension rod, and the other end of the connecting rod cooperates with the locking assembly; When the detection mechanism detects that the car is descending normally, the locking assembly is locked and connected to the connecting rod, and the extension rod is restricted and is in the initial position; when the detection mechanism detects that the downward movement of the car is abnormal, the locking assembly and the connecting rod are released from the locking relationship so that the extension rod can be released from the restriction.

8. The anti-falling device according to claim 7, characterized in that: The extension rod is provided with a first connecting portion, the connecting rod is connected to the extension rod through the first connecting portion, the first connecting portion is located on a side of the rotating shaft close to the clamping column, and the locking assembly is located on a side of the extension rod away from the clamping column.

9. The anti-falling device according to claim 7, characterized in that: The locking assembly includes a locking channel and a locking tongue. When the detection mechanism detects that the downward movement of the car is abnormal, the locking tongue leaves the locking channel to allow the connecting rod to be separated from the locking assembly.

10. The anti-falling device according to claim 6, characterized in that: The mounting frame comprises a limiting portion, and the limiting portion is used to restrict the freedom of the extension rod to flip upward.

11. The anti-falling device according to claim 3, characterized in that: There are multiple clamping grooves, and the multiple clamping grooves are arranged at intervals along the height direction of the clamping column.

12. The anti-falling device according to claim 4, characterized in that: A limiting block is fixed on the mounting frame, the rotating shaft penetrates through the mounting frame and the extending rod, a notch is opened in the radial direction of the rotating shaft, and the limiting block is stuck in the notch.

13. The anti-falling device according to any one of claims 1 to 12, characterized in that: The detection mechanism is a laser rangefinder, which is used to detect the displacement change of the car within a preset time interval. When the measured displacement change is greater than the preset displacement change, the limit mechanism switches from the first state to the second state.

14. A battery transport device, characterized in that: The battery transport equipment comprises the anti-fall device according to any one of claims 1-13.

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