An anti-falling device for the counterweight of a parking tower

Abstract

The present application relates to an anti-falling device for counterweight blocks of a parking tower, belonging to the field of accessories for intelligent parking towers. It includes a plurality of shells, and all the plurality of shells are connected to the counterweight blocks. I-beams are arranged on both sides of the counterweight blocks, and the I-beams are connected to the lifting frame. A steel cable is also connected to the counterweight block, and a reel for winding the steel cable is connected to the lifting frame. One end of the I-beam far from the lifting frame extends to the ground. The I-beam includes two flanges and one web, and the two flanges are respectively located at both ends of the web. A guiding chute for the flange to slide is formed on the shell, and a buffering mechanism is arranged in the shell. After the steel cable breaks, the buffering mechanism abuts against the flange located in the guiding chute, and the buffering mechanism is used to limit the sliding of the counterweight block on the I-beam. The present application has the effect of reducing the sliding speed of the counterweight block towards the floor slab after the steel cable breaks.

Description

Technical Field

[0001] The present application relates to the field of intelligent parking tower accessories, and in particular to a parking tower counterweight anti-falling device. Background Art

[0002] The smart parking tower is a tower-shaped multi-story parking garage built using smart parking technology. With the development of science and technology, cars have become the main means of transportation in people's daily lives. Therefore, parking has become a major problem in daily travel. The parking tower can make full use of the three-dimensional space of the parking lot and park as many vehicles as possible in a limited area, effectively solving the problem of having nowhere to park cars.

[0003] The parking tower moves vehicles by means of a vertically lifting mover, and a lifting frame for the mover to slide is provided inside the parking tower. The mover is slidably arranged on the lifting frame by means of a steel cable. In order to improve the stability of the mover when sliding inside the parking tower, a counterweight block is also slidably connected to the lifting frame, and the counterweight block slides along the height direction of the lifting frame. One end of the steel cable is fixed to the mover, and the other end of the steel cable is fixed to the counterweight block. A reel for winding the steel cable is provided on the lifting frame.

[0004] During actual use, if the steel cable fixing the counterweight is disconnected, the counterweight will slide toward the ground under the action of its own gravity. The higher the height the counterweight falls, the greater the gravitational potential energy generated by the fall of the counterweight, and the greater the force on the floor, and in serious cases, the floor may be smashed through. Summary of the invention

[0005] In order to reduce the speed at which the counterweight slides toward the floor after the steel cable breaks, the present application provides a parking tower counterweight anti-falling device.

[0006] The parking tower counterweight anti-falling device provided in this application adopts the following technical solution:

[0007] A parking tower counterweight anti-falling device includes a plurality of shells, each of which is connected to the counterweight, an I-beam is provided on both sides of the counterweight, the I-beam is connected to a lifting frame, a steel cable is also connected to the counterweight, a reel for reeling in the steel cable is connected to the lifting frame, the I-beam extends to the ground at one end away from the lifting frame, the I-beam includes two flanges and a web, the two flanges are respectively located at the two ends of the web, a guide groove for the flange to slide is provided on the shell, a buffer mechanism is provided in the shell, after the steel cable breaks, the buffer mechanism is pressed against the flange in the guide groove, and the buffer mechanism is used to limit the sliding of the counterweight on the I-beam.

[0008] By adopting the above technical scheme, when the counterweight slides along the length direction of the I-beam, the flange of the I-beam slides in the guide groove on the shell. With the cooperation of the I-beam and the shell, the sliding trajectory of the counterweight is limited, thereby improving the stability of the sliding of the counterweight; under the action of the buffer mechanism arranged in the shell, when the steel cable connected to the counterweight breaks, the buffer mechanism located in the shell can move to press against the flange located in the guide groove; the friction between the buffer mechanism and the flange reduces the speed at which the counterweight slides toward the floor after the steel cable breaks, thereby reducing the force exerted by the counterweight on the floor and improving the safety of the sliding of the counterweight.

[0009] Preferably, a plurality of guide mechanisms are connected to both sides of the counterweight block, and the guide mechanisms include a first guide wheel and a second guide wheel rotatably connected to the counterweight block, the outer wall of the first guide wheel is in contact with the web of the I-beam, and the outer wall of the second guide wheel is in contact with both flanges of the I-beam.

[0010] By adopting the above technical scheme, the outer wall of the first guide wheel is in contact with the web of the I-beam, and the outer wall of the second guide wheel is in contact with the two flanges of the I-beam. With the cooperation of the first guide wheel and the second guide wheel, the sliding trajectory of the counterweight is further limited, and the counterweight is not prone to rocking relative to the I-beam during the sliding process, thereby improving the sliding stability of the counterweight.

[0011] Preferably, the buffer mechanism includes a brake block slidably connected to the shell, and the shell is provided with a brake clamping groove for the brake block to slide, and the brake clamping groove is connected with the guide slide groove. After the brake block slides, it is pressed against the flange, and a sliding component for driving the brake block to slide is provided in the shell, and a plurality of limiting elastic parts are provided in the shell, and the plurality of limiting elastic parts are used to drive the brake block to slide in a direction away from the guide slide groove.

[0012] By adopting the above technical scheme, after the steel cable connected to the counterweight block breaks, the brake block slides from the braking groove to the guide groove under the action of the sliding assembly, and presses against the flange located in the guide groove, thereby increasing the friction between the counterweight block and the I-beam, reducing the speed of the counterweight block sliding toward the floor after the steel cable breaks, and improving the safety of the sliding of the counterweight block; through the setting of the limiting elastic part, it is not easy for the brake block to slide toward the guide groove when the steel cable connected to the counterweight block is not broken, thereby affecting the normal use of the counterweight block, thereby improving the reliability of the buffer mechanism.

[0013] Preferably, the sliding assembly includes a driving block slidably connected to the housing. The driving block is connected to the steel cable. An inclined control block is provided on the driving block. One end of the brake block away from the opening of the guiding chute is connected to a sliding block. The sliding block is slidably arranged in the housing. A control through hole cooperating with the control block is penetratingly formed in the sliding block. The inner wall of the control through hole is in contact with the control block. A driving elastic member for controlling the driving block to slide towards the sliding block is provided in the housing. A limiting member for restricting the driving block from sliding away from the sliding block is provided in the housing.

[0014] By adopting the above technical solution, when the counterweight is in normal use, the driving block is not likely to slide towards the sliding block under the action of the steel cable. After the steel cable connected to the counterweight breaks, the driving block slides towards the sliding block under the action of the driving elastic member and its own gravity. After the driving block slides, the inclined surface of the control block on the driving block fits with the inner wall of the control through hole. When the driving block slides, it drives the sliding block to slide. When the sliding block slides, it drives the brake block to slide towards the guiding chute; through the setting of the driving elastic member, the driving block is not likely to be difficult to slide towards the sliding block under its own gravity due to inertia, improving the reliability of driving the brake block to slide through the driving block.

[0015] Preferably, there are two brake blocks and two sliding blocks. The two brake blocks are respectively located at both ends of the guiding chute. A flexible driving cloth is provided in the housing. Both ends of the driving cloth are respectively connected to the two sliding blocks. A driving column is connected to the driving block. The distance between the driving column and the sliding block is less than the distance between the control block and the sliding block. After the driving block slides, the driving cloth fits with the outer wall of the driving column. A positioning groove for the driving column to be embedded in after sliding is formed on the housing.

[0016] By adopting the above technical solution, since the distance between the driving column and the sliding block is less than the distance between the control block and the sliding block, after the steel cable connected to the counterweight breaks, the driving block first slides to fit with the driving cloth and the driving column. Since the driving cloth is flexible, as the driving block slides, the driving cloth will wrap around the driving column, thereby driving the sliding blocks at both ends of the driving cloth to slide towards the driving column, and further making it convenient for the control block to slide to fit with the inner wall of the control through hole. It is not easy to occur that after the driving block slides, the control block is difficult to fit with the inner wall of the control through hole, improving the reliability of controlling the sliding of the brake block through the driving block and the sliding block.

[0017] Preferably, the limiting member includes a ratchet strip, a ratchet claw and a locking elastic member. The ratchet strip is arranged on the driving block. The ratchet claw is located in the housing. The ratchet claw is rotatably connected to the housing. The ratchet claw meshes with the ratchet strip. The locking elastic member is connected to the ratchet claw. The locking elastic member is used to drive the ratchet claw to mesh with the ratchet strip. An unlocking member for releasing the meshing between the ratchet claw and the ratchet strip is provided on the housing.

[0018] By adopting the above technical scheme, with the cooperation of the ratchet, pawl and locking elastic member, the driving block is restricted from sliding in the direction away from the sliding block, thereby improving the reliability of controlling the sliding of the brake block by the driving block, thereby improving the reliability of reducing the sliding speed of the counterweight block toward the floor slab by the brake block, and further improving the safety of the sliding of the counterweight block.

[0019] Preferably, the unlocking member comprises a pull rope, one end of which is connected to the pawl, and the other end of which extends outside the housing.

[0020] By adopting the above technical solution, when the shell is installed, the pawl is driven to rotate by pulling the pull rope. When the pawl rotates to release the engagement with the ratchet bar, the drive block can slide in the direction away from the sliding block, which facilitates the disassembly and assembly of the counterweight block.

[0021] Preferably, several of the shells are respectively connected to the top or bottom end of the counterweight block, and the top and bottom ends of the counterweight block are slidably connected with a mounting plate, the end of the driving block away from the counterweight block is connected to the adjacent mounting plate, the mounting plate located at the top of the counterweight block is connected to the steel cable, and a driving mechanism is provided on the counterweight block, and the driving mechanism is used to drive the mounting plates located at both ends of the counterweight block to slide synchronously.

[0022] By adopting the above technical solution, the steel cable is connected to the mounting plate located at the top of the counterweight block. Under the action of the driving mechanism, the mounting plates located at both ends of the counterweight block slide toward the counterweight block synchronously. When the mounting plates slide, the driving blocks located on the mounting plates can be driven to slide, which is convenient for controlling the sliding of the driving blocks, thereby facilitating the control of the sliding of the brake blocks.

[0023] Preferably, the driving mechanism includes a rotating gear rotatably connected to the counterweight block, a first rack is connected to the mounting plate located at the top end of the counterweight block, and a second rack is connected to the mounting plate located at the bottom end of the counterweight block, the first rack and the second rack are both meshed with the rotating gear, and the first rack and the second rack are respectively located on both sides of the rotating gear.

[0024] By adopting the above technical scheme, with the cooperation of the first rack, the second rack and the rotating gear, before the steel cable breaks, the steel cable has a force on the mounting plate at the top end of the counterweight block away from the counterweight block, and the mounting plate and the driving block at the bottom end of the counterweight block are not easy to slide toward the counterweight block under the action of the driving elastic member; after the steel cable breaks, when the mounting plate and the driving block at the top end of the counterweight block slide toward the counterweight block under the action of their own gravity and the driving elastic member, the mounting plate and the driving block at the bottom end of the counterweight block are not easy to slide toward the counterweight block due to their own gravity, thereby improving the reliability of controlling the sliding of the brake block by the driving block.

[0025] Preferably, the brake block is connected with serrations on the end surface facing the I-beam.

[0026] By adopting the above technical solution, during daily use, in order to improve the stability of the counterweight sliding along the I-beam, lubricating oil is sprayed on the I-beam. The lubricating oil reduces the friction between the first guide wheel and the second guide wheel and the I-beam. Through the setting of the serrations on the brake block, the friction between the brake block and the I-beam is increased, the speed of the counterweight sliding towards the floor after the steel cable breaks is slowed down, and the safety of the counterweight sliding is improved.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Under the action of the buffer mechanism arranged in the housing, when the steel cable connected to the counterweight breaks, the buffer mechanism located in the housing can move to abut against the flange located in the guide chute. The friction between the buffer mechanism and the flange reduces the speed of the counterweight sliding towards the floor after the steel cable breaks, thereby reducing the force exerted by the counterweight on the floor and improving the safety of the counterweight sliding;

[0029] 2. The outer wall of the first guide wheel fits with the web of the I-beam, and the outer wall of the second guide wheel fits with both flanges of the I-beam. The cooperation of the first guide wheel and the second guide wheel further restricts the sliding trajectory of the counterweight, and the counterweight is not prone to shaking relative to the I-beam during the sliding process, improving the stability of the counterweight sliding;

[0030] 3. Through the setting of the serrations on the brake block, the friction between the brake block and the I-beam is increased, the speed of the counterweight sliding towards the floor after the steel cable breaks is slowed down, and the safety of the counterweight sliding is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0032] Figure 2 is the structural schematic diagram of the lifting frame of the embodiment of the present application.

[0033] Figure 3 is the structural schematic diagram of the guiding mechanism of the embodiment of the present application.

[0034] Figure 4 is the structural schematic diagram of the housing of the embodiment of the present application.

[0035] Figure 5 is the structural schematic diagram of the brake block of the embodiment of the present application.

[0036] Figure 6 is the semi-sectional structural schematic diagram of the side of the housing of the embodiment of the present application.

[0037] Figure 7 is the semi-sectional structural schematic diagram of the back of the housing of the embodiment of the present application.

[0038] Figure 8 It is a schematic structural diagram after the driving block slides in the embodiment of the present application.

[0039] Description of reference numerals: 1. Housing; 11. Guide chute; 12. Brake block; 121. Tightening groove; 122. Saw teeth; 13. Driving block; 131. Driving groove; 132. Control block; 133. Ratchet bar; 134. Driving column; 135. Positioning groove; 136. Driving spring; 14. Sliding block; 141. Sliding groove; 142. Control through hole; 143. Control column; 144. Limiting groove; 145. Limiting block; 146. Limiting spring; 147. Driving cloth; 15. Pawl; 151. Locking spring; 152. Pulling rope; 16. Mounting plate; 161. Fixed column; 162. Mounting ring; 163. First rack; 164. Second rack; 17. Fixed block; 2. Counterweight; 21. I-beam; 211. Flange; 212. Web; 22. Lifting frame; 221. Reel; 222. Steel cable; 23. First guide wheel; 24. Second guide wheel; 25. Rotating gear; 26. Sleeve. Detailed implementation manners

[0040] The following is a further detailed description of the present application in conjunction with the attached Figure 1-8 drawings.

[0041] An anti-falling device for the counterweight of a parking tower is disclosed in the embodiment of the present application. Referring to Figure 1 and Figure 2 , it includes eight housings 1. The eight housings 1 are evenly divided into two groups. One group of housings 1 is fixed to the top end of the counterweight 2, and the other group of housings 1 is fixed to the bottom end of the counterweight 2. The housings 1 are arranged corresponding to the corners of the counterweight 2; I-beams 21 are provided on both sides of the counterweight 2. The I-beams 21 are fixed to the lifting frame 22. One end of the I-beam 21 away from the lifting frame 22 extends to the ground. The counterweight 2 is slidably connected to the lifting frame 22 through the I-beam 21. The counterweight 2 slides along the length direction of the I-beam 21; The I-beam 21 includes two flanges 211 and one web 212. The two flanges 211 are respectively located at both ends of the web 212. The two flanges 211 are parallel to each other and are both perpendicular to the horizontal direction of the web 212; A guide chute 11 for the flange 211 to slide is opened on the housing 1. The guide chute 11 is opened along the height direction of the housing 1. The guide chute 11 is located on the central axis of the flange 211. The flange 211 fits against the groove wall of the guide chute 11; Four reels 221 are fixedly connected to the lifting frame 22. The reels 221 are used for winding the steel cable 222. One end of the steel cable 222 is fixed to the transporter, and the other end of the steel cable 222 is fixed to the counterweight 2. The counterweight 2 improves the sliding stability of the transporter.

[0042] Referring to Figure 3, guiding mechanisms are provided on both sides of the counterweight 2. The guiding mechanisms are located between the two flanges 211 of the same I-beam 21. The guiding mechanisms include a first guiding wheel 23 and a second guiding wheel 24 rotatably connected to the counterweight 2. The rotation axis of the first guiding wheel 23 is perpendicular to the height of the counterweight 2, and the outer wall of the first guiding wheel 23 is in contact with the web 212 of the I-beam 21. The rotation axis of the second guiding wheel 24 is arranged along the height of the counterweight 2, and the outer wall of the second guiding wheel 24 is in contact with both flanges 211 of the I-beam 21. With the cooperation of the first guiding wheel 23 and the second guiding wheel 24, the sliding trajectory of the counterweight 2 is further restricted, and the counterweight 2 is not prone to sway relative to the I-beam 21 during the sliding process, improving the stability of the sliding of the counterweight 2.

[0043] Refer to Figure 4 and Figure 5 , a buffer mechanism is provided in the housing 1. After the steel cable 222 breaks, the buffer mechanism can limit the sliding of the counterweight 2 on the I-beam 21. The buffer mechanism includes two brake blocks 12 slidably connected to the housing 1. The two brake blocks 12 are respectively located on both sides of the guiding chute 11. The brake blocks 12 are arranged along the height direction of the housing 1 and slide perpendicular to the height direction of the housing 1. The housing 1 is provided with a tightening groove 121 for the brake blocks 12 to slide. The tightening groove 121 is communicated with the guiding chute 11. After the two brake blocks 12 slide, they respectively abut against the two ends of the flange 211. A sawtooth 122 is fixedly connected to the end face of the brake block 12 facing the flange 211. Through the arrangement of the brake blocks 12 and the sawteeth 122 on the brake blocks 12, the speed of the counterweight 2 sliding towards the floor after the steel cable 222 breaks is slowed down, improving the safety of the sliding of the counterweight 2.

[0044] Refer to Figure 5 , Figure 6 and Figure 7, a sliding component for driving the sliding of the brake block 12 is arranged inside the housing 1. The sliding component includes a driving block 13 slidably connected to the housing 1. The driving block 13 is arranged along the height direction of the housing 1 and slides along the height direction of the housing 1. A driving groove 131 for the driving block 13 to slide is formed in the housing 1. Control blocks 132 which are obliquely arranged are fixedly connected to both sides of the driving block 13. The control blocks 132 are arranged along the height direction of the housing 1. One ends of the two brake blocks 12 far away from the opening of the guiding sliding groove 11 are fixedly connected with sliding blocks 14. The sliding blocks 14 are slidably arranged inside the housing 1 and slide perpendicularly to the height direction of the housing 1. A sliding groove 141 for the sliding blocks 14 to slide is formed in the housing 1. Control through holes 142 cooperating with the control blocks 132 are formed at one ends of the two sliding blocks 14 far away from the central axis of the housing 1. The inner wall of the control through hole 142 is obliquely arranged. When the driving block 13 slides towards the sliding block 14, one end of the control block 132 with an inclined surface is attached to the inner wall of the control through hole 142. As the driving block 13 slides, the sliding block 14 slides towards the central axis of the housing 1, and the sliding block 14 drives the brake block 12 to slide into the guiding sliding groove 11.

[0045] Referring to Figure 6 , Figure 7 and Figure 8 , two control columns 143 are fixedly connected to one sides of the two sliding blocks 14 far away from the central axis. The two control columns 143 on one sliding block 14 are arranged perpendicular to the height direction of the housing 1. The control columns 143 are slidably arranged inside the housing 1. A limiting groove 144 for the control columns 143 to slide is formed on the housing 1. The limiting groove 144 communicates with the sliding groove 141. Four limiting elastic members are arranged inside the housing 1. In this embodiment, the limiting elastic members are selected as limiting springs 146. The four limiting springs 146 are divided into two groups. The four springs are respectively sleeved on the four control columns 143. One end of the limiting spring 146 is fixed to the inner wall of the limiting groove 144. A limiting block 145 is fixedly connected to one end of the control column 143 far away from the sliding block 14. The diameter of the limiting block 145 is larger than that of the control column 143. The other end of the limiting spring 146 is fixed to the limiting block 145. Under the action of the limiting spring 146, when the steel cable 222 is not broken, the brake block 12 is not easy to slide into the guiding sliding groove 11, improving the stability of the counterweight block 2 sliding on the I-beam 21 during the normal use of the counterweight block 2. Through the arrangement of the control columns 143, the stability of the sliding block 14 sliding inside the housing 1 is improved.

[0046] Referring to Figure 6 and Figure 7, a driving cloth 147 which is flexibly arranged is provided inside the housing 1. The driving cloth 147 is non-extensible. The driving cloth 147 is located between two sliding blocks 14. Two ends of the driving cloth 147 are respectively fixed to the two sliding blocks 14. A driving column 134 is fixedly connected to the driving block 13. The driving column 134 is arranged perpendicular to the height direction of the housing 1. However, the distance between the driving column 134 and the sliding block 14 is less than the distance between the control block 132 and the sliding block 14. A positioning groove 135 for the driving column 134 to be embedded after sliding is formed on the housing 1. The end face of the sliding block 14 facing the positioning groove 135 is arc-shaped. After the driving block 13 slides, the driving cloth 147 is attached to the outer wall of the driving column 134, and the positioning groove 135 is attached to the sliding block 14 and the driving cloth 147. With the cooperation of the driving column 134 and the driving block 13, it is convenient for the control block 132 to be attached to the inner wall of the control through hole 142 after the driving block 13 slides.

[0047] Refer to Figure 7 and Figure 8 , a driving elastic member is provided inside the housing 1. In this embodiment, the driving elastic member is selected as a driving spring 136. The driving spring 136 is used to control the driving block 13 to slide towards the sliding block 14. One end of the driving spring 136 is fixed to the inner wall of the driving groove 131, and the other end of the driving spring 136 is fixed to the end of the driving block 13 away from the sliding block 14. Through the arrangement of the driving spring 136, it is convenient for the driving block 13 to slide towards the sliding block 14 after the steel cable 222 breaks until the brake block 12 abuts against the end face of the flange 211.

[0048] Refer to Figure 7 and Figure 8 , a limiting member for restricting the driving block 13 from sliding in the direction away from the sliding block 14 is provided inside the housing 1. The limiting member includes a ratchet bar 133, a ratchet pawl 15 and a locking elastic member. In this embodiment, there are two groups of limiting members. Two ratchet bars 133 are respectively fixed to the ends of the two control blocks 132 with straight faces. The ratchet bars 133 are arranged along the height direction of the housing 1. The ratchet pawl 15 is rotatably connected to the housing 1. The ratchet pawl 15 is rotatably arranged inside the housing 1. The rotation axis of the ratchet pawl 15 is perpendicular to the height direction of the housing 1. The ratchet pawl 15 meshes with the ratchet bar 133. The locking elastic member is connected to the ratchet pawl 15. In this application example, the locking elastic member is selected as a locking spring 151. One end of the locking spring 151 is fixed to the ratchet pawl 15, and the other end of the locking spring 151 is fixed to the inner wall of the housing 1. The locking spring 151 is used to drive the ratchet pawl 15 and the ratchet bar 133 to mesh. With the cooperation of the ratchet bar 133, the ratchet pawl 15 and the locking spring 151, the driving block 13 is restricted from sliding in the direction away from the sliding block 14.

[0049] Refer to Figure 7 and Figure 8, an unlocking member for releasing the engagement between the pawl 15 and the ratchet bar 133 is provided on the housing 1. The unlocking member includes a pulling rope 152, which can be made of steel wire. The pulling rope 152 is slidably arranged on the housing 1 and is non-extensible. One end of the pulling rope 152 is fixed to the pawl 15, and the other end of the pulling rope 152 extends outside the housing 1. When the control block 132 located inside the housing 1 needs to slide in a direction away from the sliding block 14, the pulling rope 152 located outside the housing 1 is pulled. The pulling rope 152 drives the pawl 15 to rotate to release the engagement with the ratchet bar 133, and the driving block 13 can drive the control block 132 to slide in a direction away from the sliding block 14.

[0050] Referring to Figure 2 and Figure 3 , two mounting plates 16 are slidably connected to the counterweight 2. The mounting plates 16 slide along the height direction of the counterweight 2. The two mounting plates 16 are respectively located at the top and bottom of the counterweight 2. The plane of the mounting plate 16 is parallel to the top or bottom of the counterweight 2. A fixing column 161 is fixedly connected to the mounting plate 16. The fixing column 161 is a square column and is perpendicular to the end face of the mounting plate 16. The axis of the fixing column 161 coincides with the axis of the mounting plate 16. Fixing blocks 17 are fixedly connected to both the top and bottom of the counterweight 2. The fixing blocks 17 are rectangular in shape. The axis of the fixing block 17 coincides with the axis of the counterweight 2. The fixing block 17 is perpendicular to the end face of the counterweight 2. A fixing through hole for the fixing column 161 to slide is provided on the fixing block 17. The fixing column 161 slides along the height direction of the counterweight 2. Four mounting rings 162 are fixedly connected to the mounting plate 16 located at the top of the counterweight 2. The four mounting rings 162 are located between two I-beams 21. The steel cables 222 on the four reelers 221 are respectively fixed to the four mounting rings 162.

[0051] Referring to Figure 3 and Figure 4 , one end of the housing 1 provided with the sliding block 14 is fixed to the counterweight 2. The driving block 13 located at the top of the counterweight 2 is fixed to the mounting plate 16 located at the top of the counterweight 2. The driving block 13 located at the bottom of the counterweight 2 is fixed to the mounting plate 16 located at the bottom of the counterweight 2. Through the arrangement of the mounting plate 16, the driving block 13 at one end of the counterweight 2 is controlled to slide synchronously. In order to drive the driving blocks 13 at both ends of the counterweight 2 to slide synchronously, a driving mechanism is provided on the counterweight 2. There are two groups of driving mechanisms, which are respectively located on the end faces of the counterweight 2 without the I-beams 21. The driving mechanism includes a rotating gear 25 rotatably connected to the counterweight 2. The rotation axis of the rotating gear 25 is perpendicular to the end face of the counterweight 2.

[0052] Referring to Figure 2 and Figure 3, a first rack 163 is fixedly connected to the mounting plate 16 at the top end of the counterweight 2. The first rack 163 extends towards the bottom end of the counterweight 2. A second rack 164 is connected to the mounting plate 16 at the bottom end of the counterweight 2. The second rack 164 extends towards the top end of the counterweight 2. Both the first rack 163 and the second rack 164 are arranged along the height direction of the counterweight 2. Both the first rack 163 and the second rack 164 are engaged with the rotating gear 25. The first rack 163 and the second rack 164 are respectively located on both sides of the rotating gear 25. Both the first rack 163 and the second rack 164 slide along the height direction of the counterweight 2. To improve the sliding stability of the first rack 163 and the second rack 164 on the counterweight 2, a sleeve 26 is fixedly provided on the counterweight 2. The first rack 163 and the second rack 164 are slidably arranged in the sleeve 26.

[0053] After the counterweight 2 connected to the mounting plate 16 breaks, the driving block 13 at the top end of the counterweight 2 drives the mounting plate 16 to slide towards the counterweight 2. Under the cooperation of the first rack 163, the second rack 164 and the rotating gear 25, the mounting plate 16 at the bottom end of the counterweight 2 drives the driving block 13 to slide towards the counterweight 2, so that the brake blocks 12 in all the shells 1 are in close contact with the end faces of the corresponding flanges 211, increasing the friction between the counterweight 2 and the I-beam 21 and reducing the sliding speed of the counterweight 2 towards the floor after the steel cable 222 breaks.

[0054] The implementation principle of the anti-falling device for the counterweight of the parking tower in the embodiment of the present application is as follows: First, place the counterweight 2 between two I-beams 21. The first guide wheels 23 on both sides of the counterweight 2 are in contact with the webs 212 of the I-beams 21. The second guide wheels 24 at both ends of the counterweight 2 are in contact with the flanges 211 of the I-beams 21. And the flanges 211 on the I-beams 21 are all located in the guide chutes 11. Then, fix the steel cables 222 on the four winding devices 221 to the four mounting rings 162 on the mounting plate 16 respectively. The steel cables 222 have an upward acting force on the mounting plate 16 at the top end of the counterweight 2.

[0055] After the cable 222 on the mounting plate 16 breaks, the driving block 13 at the top of the counterweight 2 slides towards the counterweight 2 under the elastic force of the driving spring 136, thereby driving the mounting plate 16 at the top of the counterweight 2 to slide towards the counterweight 2. Under the action of the first rack 163, the second rack 164 and the rotating gear 25, the mounting plate 16 at the bottom of the counterweight 2 drives the driving block 13 at the bottom of the mounting plate 16 to slide towards the counterweight 2; after the driving block 13 slides, the driving column 134 first contacts the driving cloth 147. As the driving block 13 slides, the driving cloth 147 fits against the outer wall of the driving column 134. The driving cloth 147 is inextensible, so that the sliding blocks 14 at both ends of the driving cloth 147 slide towards the central axis of the housing 1. One end of the control block 132 at both ends of the driving block 13, which is arranged obliquely, fits against the inner wall of the control through hole 142, further driving the sliding block 14 to slide towards the central axis of the housing 1. When the sliding block 14 slides, it drives the brake block 12 to slide into the guiding chute 11. After the brake block 12 slides, it abuts against the flange 211 in the guiding chute 11; with the cooperation of the ratchet bar 133, the pawl 15 and the locking spring 151, the driving block 13 is not easily slid in the direction away from the sliding block 14.

[0056] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A counterweight anti-falling device for a parking tower, characterized in that: It includes several shells (1), several of the said shells (1) are all connected to a counterweight (2), I-beams (21) are arranged on both sides of the counterweight (2), the I-beams (21) are connected to a lifting frame (22), a steel cable (222) is also connected to the counterweight (2), a winder (221) for winding the steel cable (222) is connected to the lifting frame (22), one end of the I-beam (21) far from the lifting frame (22) extends to the ground, the I-beam (21) includes two flanges (211) and one web (212), the two flanges (211) are respectively located at both ends of the web (212), a guiding chute (11) for the flange (211) to slide is opened on the shell (1), a buffer mechanism is arranged in the shell (1), after the steel cable (222) breaks, the buffer mechanism abuts against the flange (211) located in the guiding chute (11), and the buffer mechanism is used to limit the sliding of the counterweight (2) on the I-beam (21); Several guiding mechanisms are connected to both sides of the counterweight (2), the guiding mechanism includes a first guiding wheel (23) and a second guiding wheel (24) rotatably connected to the counterweight (2), the outer wall of the first guiding wheel (23) is attached to the web (212) of the I-beam (21), and the outer wall of the second guiding wheel (24) is attached to both flanges (211) of the I-beam (21); The buffer mechanism includes a brake block (12) slidably connected to the shell (1), a braking slot (121) for the brake block (12) to slide is opened on the shell (1), the braking slot (121) is communicated with the guiding chute (11), after the brake block (12) slides, it abuts against the flange (211), a sliding component for driving the brake block (12) to slide is arranged in the shell (1), and several limiting elastic members are arranged in the shell (1), and the several limiting elastic members are used to drive the brake block (12) to slide in a direction away from the guiding chute (11).

2. The anti-falling device for the counterweight of a parking tower according to claim 1, characterized in that: The sliding component includes a driving block (13) slidably connected to the shell (1), the driving block (13) is connected to the steel cable (222), an inclined control block (132) is arranged on the driving block (13), one end of the brake block (12) far from the opening of the guiding chute (11) is connected to a sliding block (14), the sliding block (14) is slidably arranged in the shell (1), a control through hole (142) matched with the control block (132) is penetrated through the sliding block (14), the inner wall of the control through hole (142) is attached to the control block (132), a driving elastic member for controlling the driving block (13) to slide towards the sliding block (14) is arranged in the shell (1), and a limiting member for limiting the driving block (13) to slide in a direction away from the sliding block (14) is arranged in the shell (1).

3. The anti-falling device for the counterweight of the parking tower according to claim 2, wherein: There are two brake blocks (12) and two sliding blocks (14). The two brake blocks (12) are respectively located at both ends of the guiding chute (11). A flexible driving cloth (147) is arranged in the housing (1). Both ends of the driving cloth (147) are respectively connected to the two sliding blocks (14). A driving column (134) is connected to the driving block (13). The distance between the driving column (134) and the sliding block (14) is less than the distance between the control block (132) and the sliding block (14). After the driving block (13) slides, the driving cloth (147) fits against the outer wall of the driving column (134). A positioning groove (135) for the driving column (134) to be embedded after sliding is formed on the housing (1).

4. The anti-falling device for the counterweight of a parking tower according to claim 3, wherein: The limiting member includes a ratchet bar (133), a ratchet pawl (15) and a locking elastic member. The ratchet bar (133) is arranged on the driving block (13). The ratchet pawl (15) is located in the housing (1). The ratchet pawl (15) is rotatably connected to the housing (1). The ratchet pawl (15) meshes with the ratchet bar (133). The locking elastic member is connected to the ratchet pawl (15). The locking elastic member is used to drive the ratchet pawl (15) to mesh with the ratchet bar (133). An unlocking member for releasing the engagement between the ratchet pawl (15) and the ratchet bar (133) is arranged on the housing (1).

5. The anti-falling device for the counterweight of a parking tower according to claim 4, characterized in that: The unlocking member includes a pull rope (152). One end of the pull rope (152) is connected to the ratchet pawl (15). The other end of the pull rope (152) extends outside the housing (1).

6. The anti-falling device for the counterweight of a parking tower according to claim 3 or 4, characterized in that: A plurality of the housings (1) are respectively connected to the top end or the bottom end of the counterweight block (2). Installation plates (16) are slidably connected to both the top end and the bottom end of the counterweight block (2). The end of the driving block (13) away from the counterweight block (2) is connected to the adjacent installation plate (16). The installation plate (16) located at the top end of the counterweight block (2) is connected to a steel cable (222). A driving mechanism is arranged on the counterweight block (2). The driving mechanism is used to drive the installation plates (16) at both ends of the counterweight block (2) to slide synchronously.

7. The anti-falling device for the counterweight of a parking tower according to claim 6, characterized in that: The driving mechanism includes a rotating gear (25) rotatably connected to the counterweight block (2). A first rack (163) is connected to the installation plate (16) located at the top end of the counterweight block (2). A second rack (164) is connected to the installation plate (16) located at the bottom end of the counterweight block (2). Both the first rack (163) and the second rack (164) mesh with the rotating gear (25). The first rack (163) and the second rack (164) are respectively located on both sides of the rotating gear (25).

8. The anti-falling device for the counterweight of a parking tower according to claim 1, characterized in that: Saw teeth (122) are connected to the end face of the brake block (12) facing the I-beam (21).

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