阅读说明：本技术 可避免抓持不牢固的立体停车设备用钢丝绳防松装置 (Steel wire rope anti-loosening device capable of avoiding infirm grasping and holding for three-dimensional parking equipment ) 是由 张尚林 于 2021-06-22 设计创作，主要内容包括：本发明公开了立体停车设备技术领域的可避免抓持不牢固的立体停车设备用钢丝绳防松装置,包括固定梁、钢丝绳与载车板,所述钢丝绳安装在固定梁的底部外壁上,所述安装套套在钢丝绳的外侧,所述安装套内壁安装有提示装置,所述提示装置内壁固定安装有固定齿,所述安装套右侧外壁固定安装有气缸,且气缸左侧推杆延伸至安装套的内腔中并与提示装置连接,装置中通过连接块与安装板会向下移动,使下侧连接块将拉块向下推动,使活动板向下移动,使两组导电片贴合,使LED灯通电工作,用于提示工作,使工作人员及时了解防松装置存在握持不牢固的现象,便于及时处理,降低安全隐患产生的几率。(The invention discloses a steel wire rope anti-loosening device for three-dimensional parking equipment, which can avoid the insecure holding of the steel wire rope, and belongs to the technical field of three-dimensional parking equipment, and comprises a fixed beam, a steel wire rope and a vehicle carrying plate, wherein the steel wire rope is arranged on the outer wall of the bottom of the fixed beam, an installation sleeve is sleeved on the outer side of the steel wire rope, a prompting device is arranged on the inner wall of the installation sleeve, fixed teeth are fixedly arranged on the inner wall of the prompting device, an air cylinder is fixedly arranged on the outer wall of the right side of the installation sleeve, a push rod at the left side of the air cylinder extends into an inner cavity of the installation sleeve and is connected with the prompting device, the device and an installation plate can move downwards through a connecting block, a pull block is pushed downwards by a lower side connecting block, a movable plate moves downwards, two groups of conducting plates are attached, an LED lamp is electrified to work for prompting work, a worker can know the insecure holding phenomenon of the anti-loosening device in time, and is convenient to process in time, the probability of potential safety hazard is reduced.)

1. Can avoid grabbing insecure wire rope locking device for sky parking equipment, including fixed beam (1), wire rope (2) and year sweep (3), its characterized in that: install on the bottom outer wall of fixed beam (1) wire rope (2), carry sweep (3) fixed mounting in the bottom of wire rope (2), fixed beam (1) bottom outer wall fixed mounting has installation cover (4), installation cover (4) cover is in the outside of wire rope (2), suggestion device (5) are installed to installation cover (4) inner wall, suggestion device (5) inner wall fixed mounting has fixed tooth, installation cover (4) right side outer wall fixed mounting has cylinder (6), and cylinder (6) left side push rod extends to in the inner chamber of installation cover (4) and is connected with suggestion device (5).

2. The cable locking device for a sky parking facility capable of preventing a weak grip according to claim 1, wherein: the prompting device (5) comprises two groups of mounting seats (51), the left mounting seat (51) is fixedly mounted on the left inner wall of the mounting sleeve (4), the right outer wall of the right mounting seat (51) is fixedly connected with a push rod on the left side of the air cylinder (6), the mounting plates (52) are uniformly arranged on the outer walls of the two groups of mounting seats (51) close to each other, fixed teeth are fixedly mounted on the outer walls of the mounting plates (52), connecting blocks (53) are fixedly mounted on the outer walls of the left and right mounting plates (52) far away from each other, mounting grooves (54) are formed in the outer walls of the two groups of mounting seats (51) close to each other, the connecting blocks (53) are inserted into the inner cavities of the mounting grooves (54), the outer wall of the top of the upper connecting block (53) is fixedly connected with the top of the inner cavity of the mounting groove (54), moving blocks (512) are fixedly mounted on the outer walls of the bottom of the connecting blocks (53) in three groups of the lower side, and moving grooves (510) are formed in the top of the lower connecting blocks (53), a moving block (512) is inserted into an inner cavity of the moving groove (510) in a sliding manner, a telescopic spring (511) is fixedly installed between the moving block (512) and the inner cavity of the moving groove (510), an installation box (57) is fixedly installed on the outer wall of the right side of the installation sleeve (4), an LED lamp (59) is fixedly installed on the outer wall of the top of the installation box (57), a movable plate (58) is installed in the inner cavity of the installation box (57), sliding blocks are fixedly installed on the outer walls of the left side and the right side of the movable plate (58), sliding grooves are formed in the inner walls of the left side and the right side of the installation box (57), a reset spring is fixedly installed between the sliding blocks and the inner cavity of the sliding grooves, conductive plates are installed on the outer wall of the bottom of the movable plate (58) and the bottom of the inner cavity of the installation box (57), the lower conductive plates are electrically connected with the LED lamp (59), a pull block (55) is installed on the inner wall of the bottom of the left side of the installation groove (54), a pull rope (56) is fixedly arranged between the outer wall of the right side of the pull block (55) and the outer wall of the bottom of the movable plate (58).

3. The cable locking device for a sky parking facility capable of preventing a weak grip according to claim 2, wherein: the moving block (512) comprises a moving block body (5124) fixedly connected with the outer wall of the bottom of the connecting block (53), a moving hole is formed in the outer wall of the bottom of the moving block body (5124), the moving block (5123) is inserted into the bottom of the inner cavity of the moving hole in a sliding mode, a block (5121) is fixedly installed at the bottom of the moving block (5123), the outer wall of the bottom of the block (5121) is fixedly connected with the top end of an expansion spring (511), the outer wall of the moving block (5123) is sleeved with a connecting spring (5122), two ends of the connecting spring (5122) are respectively fixedly connected with the outer wall of the bottom of the moving block body (5124), the outer wall of the top of the block (5121) is fixedly connected, a rotating screw rod is screwed on the inner wall of the rear side of the moving hole, a connecting rope is wound on the outer wall of the rotating screw rod, and the bottom end of the connecting rope is fixedly connected with the top of the moving block (5123).

4. The cable locking device for a sky parking facility capable of preventing a weak grip according to claim 2, wherein: the outer wall of the front side of the mounting plate (52) is fixedly provided with a mounting block (513), the outer wall of the top of the mounting block (513) is provided with a screw hole, and a fixing bolt (514) is screwed between the inner cavities of two adjacent groups of screw holes.

5. The cable locking device for a sky parking facility capable of preventing a weak grip according to claim 2, wherein: the outer wall of the bottom of the pull block (55) is in threaded connection with a screw rod (551), and the top end of the screw rod (551) extends to the outer wall of the top of the pull block (55) and is fixedly connected with the pressing block (552).

6. The cable locking device for a sky parking facility capable of preventing a weak grip according to claim 2, wherein: the outer wall of the right side of the installation box (57) is fixedly provided with an installation sleeve (515), the inner cavity of the installation sleeve (515) is rotatably provided with a rotating rod (516), the outer wall of the rotating rod (516) is sleeved with a torsion spring (518), two ends of the torsion spring (518) are respectively and fixedly connected with the outer wall of the rotating rod (516) and the inner wall of the mounting sleeve (515), the bottom end of the rotating rod (516) extends to the outer wall of the bottom of the mounting sleeve (515) and is fixedly connected with the supporting plate (517), the inner wall of the left side of the mounting sleeve (515) is provided with a mounting hole, a limiting rod (519) is inserted into the inner cavity of the mounting hole in a sliding way, a spring is sleeved on the outer wall of the limiting rod (519), and two ends of the spring are respectively fixedly connected with the outer wall of the limit rod (519) and the inner wall of the mounting hole, the outer wall of the left side of the rotating rod (516) is provided with a limit groove, and the right end of the limiting rod (519) is inserted into the inner cavity of the limiting groove, and the left end of the limiting rod (519) extends into the inner cavity of the installation box (57) and is attached to the outer wall of the right side of the movable plate (58).

7. The cable locking device for a sky parking facility capable of preventing a weak grip according to claim 6, wherein: the opening is formed in the outer wall of the top of the movable plate (58), the threaded rod (520) is inserted into the inner cavity of the opening in a sliding mode, the top end of the pull rope (56) extends into the inner cavity of the opening and is fixedly connected with the bottom end of the threaded rod (520), the nut is sleeved on the outer wall of the threaded rod (520), and the outer wall of the bottom of the nut is attached to the outer wall of the top of the installation box (57).

Technical Field

The invention relates to the technical field of three-dimensional parking equipment, in particular to a steel wire rope anti-loosening device for the three-dimensional parking equipment, which can avoid infirm grasping.

Background

The three-dimensional parking equipment is used for parking vehicles, in order to increase parking safety and prevent the safety of the equipment caused by the loosening and breaking of a steel wire rope which is worn for a long time, a locking device is generally arranged on the equipment to fixedly lock the loosened steel wire rope, the method is disclosed in the publication of a steel wire rope guiding and locking device for the lifting and traversing mechanical three-dimensional parking equipment with the application number of CN201921949189.3, however, when the loosened and broken steel wire rope is fixedly locked, a fixed gear is pushed by an air cylinder to be contacted with the steel wire rope to fix the steel wire rope, if the loosening and breaking area of the steel wire rope is close to a vehicle carrying plate, the length of the steel wire rope which can be fixedly held is shorter, the locking device has a certain height, only part of fixed teeth of the locking device is contacted with the steel wire rope, the phenomenon that the vehicle carrying plate is not firmly held exists, the vehicle carrying plate is easy to fall off, and the use effect of the locking device is influenced, the steel wire rope anti-loosening device for the three-dimensional parking equipment has certain potential safety hazards, and therefore the steel wire rope anti-loosening device for the three-dimensional parking equipment can avoid being grabbed and held insecurely.

Disclosure of Invention

The invention aims to provide a steel wire rope anti-loosening device for three-dimensional parking equipment, which can avoid the infirm grasping, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: can avoid grabbing and hold insecure wire rope locking device for sky parking equipment, include fixed beam, wire rope and carry the sweep, wire rope installs on the bottom outer wall of fixed beam, carry sweep fixed mounting in wire rope's bottom, fixed beam bottom outer wall fixed mounting has the installation cover, the installation ways is in wire rope's the outside, the suggestion device is installed to installation cover inner wall, suggestion device inner wall fixed mounting has fixed tooth, installation cover right side outer wall fixed mounting has the cylinder, and cylinder left side push rod extends to in the inner chamber of installation cover and is connected with the suggestion device.

Preferably, the prompting device comprises two groups of mounting seats, the mounting seat on the left side is fixedly arranged on the inner wall on the left side of the mounting sleeve, the outer wall on the right side of the mounting seat is fixedly connected with a push rod on the left side of the air cylinder, the outer wall on one side, close to each other, of the two groups of mounting seats is uniformly provided with a mounting plate, fixed teeth are fixedly arranged on the outer wall of the mounting plate, the outer wall on one side, far away from each other, of the mounting plates on the left side and the right side is fixedly provided with a connecting block, the outer wall on one side, close to each other, of the two groups of mounting seats is provided with a mounting groove, the connecting block is inserted into the inner cavity of the mounting groove, the outer wall on the top of the connecting block is fixedly connected with the top of the inner cavity of the mounting groove, the outer wall on the bottom of the connecting block is fixedly provided with a moving block, the outer walls on the tops of the three groups of the connecting blocks are provided with moving grooves, the moving block is slidably inserted into the inner cavity of the moving grooves, and a telescopic spring is fixedly arranged between the moving block and the moving groove, the utility model discloses a LED lamp, including installation cover, installation case, slide block, mounting box inner chamber, fly leaf, the equal fixed mounting of fly leaf left and right sides outer wall has the slider, the spout has all been seted up to the installation case left and right sides inner wall, and the slider slides and inserts in the inner chamber of spout, and fixed mounting has reset spring between slider and the spout inner chamber, the conducting strip is all installed to fly leaf bottom outer wall and installation case inner chamber bottom, and downside conducting strip and LED lamp electric connection, right side installation groove left side bottom inner wall slidable mounting has the stay cord, fixed mounting has the stay cord between stay cord right side outer wall and the fly leaf bottom outer wall.

Preferably, the movable block comprises a movable block body fixedly connected with the outer wall of the bottom of the connecting block, a movable hole is formed in the outer wall of the bottom of the movable block body, a movable rod is inserted into the bottom of the inner cavity of the movable hole in a sliding mode, a block is fixedly mounted at the bottom of the movable rod, the outer wall of the bottom of the block is fixedly connected with the top of an expansion spring, a connecting spring is sleeved on the outer wall of the movable rod, two ends of the connecting spring are fixedly connected with the outer wall of the bottom of the movable block body and the outer wall of the top of the block respectively, a rotating screw rod is connected to the inner wall of the rear side of the movable hole in a threaded mode, a connecting rope is wound on the outer wall of the rotating screw rod, and the bottom end of the connecting rope is fixedly connected with the top of the movable rod.

Preferably, the mounting block is fixedly mounted on the outer wall of the front side of the mounting plate, screw holes are formed in the outer wall of the top of the mounting block, and fixing bolts are screwed between the inner cavities of the two adjacent groups of screw holes.

Preferably, the outer wall of the bottom of the pull block is in threaded connection with a screw, and the top end of the screw extends to the outer wall of the top of the pull block and is fixedly connected with the pressing block.

Preferably, install bin right side outer wall fixed mounting has the installation sleeve pipe, the installation sleeve pipe inner chamber rotates and installs the bull stick, the bull stick outer wall has cup jointed the torsional spring, and the torsional spring both ends respectively with bull stick outer wall, installation sleeve pipe inner wall fixed connection, the bull stick bottom extend to the bottom outer wall of installation sleeve pipe and with layer board fixed connection, the mounting hole has been seted up to installation sleeve pipe left side inner wall, and the mounting hole inner chamber slides and pegs graft and have the gag lever post, the gag lever post outer wall has cup jointed the spring, and the spring both ends respectively with gag lever post outer wall, mounting hole inner wall fixed connection, the spacing groove has been seted up to bull stick left side outer wall, and the gag lever post right-hand member is inserted in the inner chamber of spacing groove, and the gag lever post left end extends to in the inner chamber of install bin and laminates mutually with fly leaf right side outer wall.

Preferably, the outer wall of the top of the movable plate is provided with an opening, an inner cavity of the opening is slidably inserted with a threaded rod, the top end of the pull rope extends into the inner cavity of the opening and is fixedly connected with the bottom end of the threaded rod, the outer wall of the threaded rod is sleeved with a nut, and the outer wall of the bottom of the nut is attached to the outer wall of the top of the installation box.

Compared with the prior art, the invention has the beneficial effects that:

1. the device can move downwards through the connecting block and the mounting plate, so that the lower connecting block pushes the pull block downwards, the movable plate moves downwards, the two groups of conducting strips are attached, the LED lamp is electrified to work for prompting, a worker can know the phenomenon that the anti-loosening device is not firmly held in time, the anti-loosening device is convenient to process in time, and the probability of potential safety hazards is reduced;

2. the fixing bolts are inserted into the screw holes of the two adjacent groups of mounting blocks, so that the two adjacent groups of mounting plates are connected, the mounting plate below can be fixed on the mounting plate above, whether the fixed teeth below can move can be adjusted, and therefore the adjustment of the prompting device can be triggered only by how many fixed teeth are in contact with the broken steel wire ropes, the use accuracy of the prompting device is improved, and the use performance of the prompting device is improved;

3. when the stay cord takes the fly leaf to move down, can remove the fly leaf from the left side of gag lever post, make the gag lever post right-hand member shift out from the inner chamber of spacing groove, make the bull stick rotate, move the layer board to the below of carrying the sweep, play a spacing protection effect, avoid taking place to fall because of holding to grab the insecure and lead to carrying the sweep, further reduce the probability of the potential safety hazard of production, increase suggestion device's performance.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of a prompting device according to the present invention;

FIG. 3 is an enlarged view of the structure at A of the present invention;

FIG. 4 is a schematic sectional view of the connection between the installation box and the installation sleeve according to the present invention;

FIG. 5 is a schematic view of the connection structure of the pulling block and the pressing block.

In the figure: 1. a fixed beam; 2. a wire rope; 3. a vehicle carrying board; 4. installing a sleeve; 5. a prompting device; 51. a mounting seat; 52. mounting a plate; 53. connecting blocks; 54. mounting grooves; 55. pulling the block; 551. a screw; 552. briquetting; 56. pulling a rope; 57. installing a box; 58. a movable plate; 59. an LED lamp; 510. a moving groove; 511. a tension spring; 512. a moving block; 5121. a block body; 5122. a connecting spring; 5123. a travel bar; 5124. a moving block body; 513. mounting blocks; 514. fixing the bolt; 515. installing a sleeve; 516. a rotating rod; 517. a support plate; 518. a torsion spring; 519. a limiting rod; 520. a threaded rod; 6. and a cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

the invention provides a technical scheme that: referring to fig. 1, the steel wire rope looseness prevention device for the three-dimensional parking equipment capable of avoiding loose holding comprises a fixed beam 1, a steel wire rope 2 and a vehicle carrying plate 3;

referring to fig. 1, a steel wire rope 2 is installed on the outer wall of the bottom of a fixed beam 1, a vehicle carrying plate 3 is fixedly installed at the bottom end of the steel wire rope 2, an installation sleeve 4 is fixedly installed on the outer wall of the bottom of the fixed beam 1, a detection switch is installed at the bottom of the installation sleeve 4, the detection switch is the same as the detection switch in the publication of the steel wire rope guiding anti-loosening device for the lifting and traversing mechanical three-dimensional parking equipment with application number CN201921949189.3, when the steel wire rope 2 is detected to be loosened and broken, is used for controlling the working of the cylinder 6 to lead the fixed teeth to be close to clamp the steel wire rope 2, the installation sleeve 4 is sleeved outside the steel wire rope 2, the inner wall of the installation sleeve 4 is provided with a prompting device 5, the inner wall of the prompting device 5 is fixedly provided with the fixed teeth, the outer wall of the right side of the installation sleeve 4 is fixedly provided with the cylinder 6, a push rod on the left side of the air cylinder 6 extends into an inner cavity of the mounting sleeve 4 and is connected with the prompting device 5, and electric equipment related in the device is electrically connected with an external power switch through a lead;

referring to fig. 1, 2, 3 and 4, the prompting device 5 includes two sets of mounting seats 51, the left mounting seat 51 is fixedly mounted on the left inner wall of the mounting sleeve 4, the right outer wall of the right mounting seat 51 is fixedly connected with the left push rod of the cylinder 6, the two sets of mounting seats 51 are uniformly provided with mounting plates 52 on the outer walls of the sides close to each other, and fixed teeth are fixedly mounted on the outer walls of the mounting plates 52, the fixed teeth are distributed from top to bottom, each fixed tooth corresponds to one mounting plate 52, the outer walls of the sides far away from the left and right mounting plates 52 are fixedly mounted with connecting blocks 53, the outer walls of the sides close to each other of the two sets of mounting seats 51 are respectively provided with mounting grooves 54, the connecting blocks 53 are inserted into the inner cavities of the mounting grooves 54, the outer wall of the top of the upper connecting block 53 is fixedly connected with the top of the inner cavities of the mounting grooves 54, the upper connecting blocks 53 cannot move, and the three sets of lower connecting blocks 53 can slide in the inner cavities of the mounting grooves 54, the outer wall of the bottom of the connecting block 53 is fixedly provided with a moving block 512, the outer walls of the tops of the three groups of connecting blocks 53 on the lower side are provided with a moving groove 510, the moving block 512 is inserted into the inner cavity of the moving groove 510 in a sliding manner, a telescopic spring 511 is fixedly arranged between the moving block 512 and the inner cavity of the moving groove 510, the outer wall of the right side of the mounting sleeve 4 is fixedly provided with a mounting box 57, the outer wall of the top of the mounting box 57 is fixedly provided with an LED lamp 59, the inner cavity of the mounting box 57 is provided with a moving plate 58, the outer walls of the left side and the right side of the moving plate 58 are fixedly provided with slide grooves, the slide blocks are inserted into the inner cavities of the slide grooves in a sliding manner, a return spring is fixedly arranged between the slide blocks and the inner cavities of the slide grooves, the slide blocks, the slide grooves and the return spring are not drawn in the figure, the outer wall of the bottom of the moving plate 58 and the inner cavity of the mounting box 57 are provided with conducting strips, the upper side is electrically connected with an external power supply, and the lower side of the conducting strips is electrically connected with the LED lamp 59, a pull block 55 is slidably mounted on the inner wall of the bottom of the left side of the right mounting groove 54, a pull rope 56 is fixedly mounted between the outer wall of the right side of the pull block 55 and the outer wall of the bottom of the movable plate 58, when a loose area of the steel wire rope 2 is closer to the vehicle carrying plate 3, the length of the steel wire rope 2 connected with the vehicle carrying plate 3 is smaller, so that only part of the fixed teeth are in contact with the outer wall of the steel wire rope 2 when the fixed teeth are fixed on the steel wire rope 2, so that the contact area of the fixed teeth and the steel wire rope 2 is smaller, and the phenomenon of poor holding is easily caused, in the process that part of the fixed teeth are in contact with the steel wire rope 2, the telescopic spring 511 is stretched, so that the connecting block 53 and the mounting plate 52 can move downwards, the lower connecting block 53 is in contact with the pull block 55, the pull rope 56 is pulled, the movable plate 58 moves downwards, so that the two groups of conductive plates are attached, the LED lamp 59 is electrified to work for prompting, so that a worker can timely know that the phenomenon of poor holding of the anti-loosening device exists, the system is convenient to process in time, and the probability of potential safety hazard is reduced;

referring to fig. 2 and 3, the moving block 512 includes a moving block body 5124 fixedly connected to the outer wall of the bottom of the connecting block 53, a moving hole is formed in the outer wall of the bottom of the moving block body 5124, a moving rod 5123 is slidably inserted into the bottom end of the inner cavity of the moving hole, a block 5121 is fixedly installed at the bottom end of the moving rod 5123, the outer wall of the bottom of the block 5121 is fixedly connected to the top end of the extension spring 511, a connecting spring 5122 is sleeved on the outer wall of the moving rod 5123, two ends of the connecting spring 5122 are fixedly connected to the outer wall of the bottom of the moving block body 5124 and the outer wall of the top of the block 5121, a rotating screw is screwed to the inner wall of the rear side of the moving hole, a connecting rope is wound around the outer wall of the rotating screw, the bottom end of the connecting rope is fixedly connected to the top end of the moving rod 5123, the rotating screw is rotated to wind the connecting rope around the outer wall of the rotating screw or release the connecting rope from the outer wall of the rotating screw, so that the moving rod 5123 moves the block 5121 upward or downward, the compression degree of the extension spring 511 is changed, so that the difficulty of the connecting block 53 with the mounting plate 52 moving downwards can be adjusted, and the use effect of the prompting device 5 is improved;

referring to fig. 2 and 3, an installation block 513 is fixedly installed on the outer wall of the front side of the installation plate 52, screw holes are formed in the outer wall of the top of the installation block 513, fixing bolts 514 are screwed between the inner cavities of two adjacent groups of screw holes, and the fixing bolts 514 are inserted into the screw holes of the two adjacent groups of installation blocks 513, so that the two adjacent groups of installation plates 52 are connected, the installation plate 52 below can be fixed on the installation plate 52 above, whether the fixed teeth below can move or not can be adjusted, and therefore the adjustment of the prompting device 5 can be triggered only when how many fixed teeth are in contact with the broken steel wire rope 2, the use accuracy of the prompting device 5 is increased, and the use performance of the prompting device 5 is increased;

referring to fig. 2 and 5, a screw 551 is screwed on the outer wall of the bottom of the pull block 55, the top end of the screw 551 extends to the outer wall of the top of the pull block 55 and is fixedly connected with the pressing block 552, the screw 551 is rotated to move the pull block 55 upwards or downwards, so that the distance between the pull block 55 and the lower connecting block 53 can be adjusted, and the contact position between the lower connecting block 53 and the pull block 55 can be adjusted;

example 2:

referring to fig. 2 and 4, based on embodiment 1, when the installation box 57 is fixedly installed with the installation sleeve 515 on the outer wall of the right side, the inner cavity of the installation sleeve 515 is rotatably installed with the rotating rod 516, the outer wall of the rotating rod 516 is sleeved with the torsion spring 518, and both ends of the torsion spring 518 are respectively fixedly connected with the outer wall of the rotating rod 516 and the inner wall of the installation sleeve 515, the bottom end of the rotating rod 516 extends to the outer wall of the bottom of the installation sleeve 515 and is fixedly connected with the supporting plate 517, the inner wall of the left side of the installation sleeve 515 is opened with an installation hole, the inner cavity of the installation hole is slidably inserted with the limiting rod 519, the outer wall of the limiting rod 519 is sleeved with the spring, and both ends of the spring are respectively fixedly connected with the outer wall of the limiting rod 519 and the inner wall of the installation hole, the outer wall of the left side of the rotating rod 516 is opened with the limiting groove, and the limiting rod 519 is inserted into the inner cavity of the right-end limiting groove, and the left end of the limiting rod 519 extends to the inner cavity of the installation box 57 and is attached to the outer wall of the right side of the movable plate 58, the pull rope 56 drives the movable plate 58 to move down, the movable plate 58 is moved away from the left side of the limiting rod 519, the left end of the limiting rod 519 enters the inner cavity of the installation box 57 through the reset of the spring, the right end of the limiting rod 519 is moved out of the inner cavity of the limiting groove, the fixing force borne by the rotating rod 516 is eliminated, the rotating rod 516 is reset through the torsion spring 518, the rotating rod 516 rotates, the supporting plate 517 is moved to the lower side of the vehicle carrying plate 3, a limiting protection effect is achieved, the downward moving amplitude of the supporting plate 517 is not too large, the vehicle carrying plate 3 is prevented from falling due to the fact that the supporting plate is not firmly held, the probability of potential safety hazards is further reduced, and the using performance of the prompting device 5 is increased;

referring to fig. 4, an opening is formed in the outer wall of the top of the movable plate 58, a threaded rod 520 is inserted into an inner cavity of the opening in a sliding manner, the top end of the pull rope 56 extends into the inner cavity of the opening and is fixedly connected with the bottom end of the threaded rod 520, a nut is sleeved on the outer wall of the threaded rod 520, the outer wall of the bottom of the nut is attached to the outer wall of the top of the installation box 57, and the nut is rotated to change the position of the nut on the outer wall of the threaded rod 520, so that the movable amplitude of the movable plate 58 can be adjusted when the pull rope 56 moves;

increase parts such as installation sleeve 515, bull stick 516 and layer board 517 for embodiment 1, through moving layer board 517 to the below of carrying sweep 3, play a spacing protection effect, make layer board 517 move down the range can not too big, avoid taking place to fall because of holding to grab and lead to carrying sweep 3 insecure, further reduce the probability of the potential safety hazard of production, increase suggestion device 5's performance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.