C-shaped hook guide structure

Abstract

The invention provides a C-shaped hook guide structure which comprises a C-shaped hook structure, a guide mechanism and a guard plate structure, the guide mechanism comprises two guide units which are oppositely arranged in the transverse direction, each guide unit comprises a driving part, a transmission part, a self-locking part and a guide shifting piece, the driving part is arranged in a self-rotating mode, and the guide shifting piece is arranged on the transmission part. And a first pit for placing the self-locking part is formed in the bottom end of the C-shaped hook structure. Therefore, when the steel coil is conveyed to the coil conveying trolley, the C-shaped hook structure is pushed outwards in the longitudinal direction, at the moment, the driving part rotates to drive the guide shifting piece to rotate to the open state through the transmission part so as to extend in the longitudinal direction, and the self-locking part falls into the first pit to form a self-locking state; the coil conveying trolley which deflects in this way can be shifted back to face the C-shaped hook structure in the longitudinal direction after making contact with the guide shifting piece, so that the steel coil can stably fall into the mounting groove of the coil conveying trolley, coil unloading is completed, manual intervention is not needed in the whole process, the automatic production rhythm is guaranteed, and the coil conveying efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel coil transfer, and particularly to a C-hook alignment structure. Background Art

[0002] On the thin slab continuous casting and rolling production line, the steel coil goes from the coiler, uncoiling trolley, lifting trolley, coil receiving device, coil transporting trolley to the walking beam. During the process of the coil transporting trolley sending the steel coil coming from the coil receiving device to the walking beam, it needs to rotate 180° to adapt to the subsequent sampling process; the coil receiving device is responsible for uniformly sending the steel coils at the 1# and 2# lifting trolley stations to the coil transporting trolley; after the coil receiving device walks the steel coil lifted to the predetermined height to the position aligned with the coil transporting trolley track and locks the walking wheels, the C-hook with the steel coil is driven by the oil cylinder, and the supporting beam part is inserted into the middle groove of the coil transporting trolley. After reaching the appropriate position, the lifting oil cylinder descends, the steel coil falls onto the bracket of the coil transporting trolley, and after the lifting oil cylinder continues to descend a small distance, the driving oil cylinder retracts to withdraw the C-hook from the coil transporting trolley, and the work of the coil receiving device is completed. Then the coil transporting trolley rotates and walks to the walking beam.

[0003] In the prior art, the repeated rotation of the coil transporting trolley requires high positioning accuracy. Although proximity switches are provided, the errors often exceed the tolerance. If the alignment with the C-hook cannot be accurately positioned, it will cause the coil unloading to shift, so manual intervention for alignment is required, which affects the automation production rhythm.

[0004] In view of this, it is necessary to propose a C-hook alignment structure to solve or at least alleviate the above defects. Summary of the Invention

[0005] The main object of the present invention is to provide a C-hook alignment structure to solve the problem that the C-hook in the prior art cannot automatically align the self-rotating coil transporting trolley, resulting in low production automation efficiency.

[0006] To achieve the above object, the present invention provides a C-hook alignment structure, including a C-hook structure, an alignment mechanism, and a guard plate structure. The guard plate structure is used to be installed on the track frame, and the guard plate structure has a spaced space extending longitudinally. The bottom end of the C-hook structure is movably penetrated through the spaced space longitudinally; wherein,

[0007] The alignment mechanism includes two alignment units arranged oppositely in the transverse direction. Each alignment unit includes a driving part, a transmission part, a self-locking part, and an alignment flap; wherein,

[0008] The driving part is connected to the bottom end of the C-shaped hook structure and is rotatably arranged. One end of the transmission part is connected to the driving part, and the other end of the transmission part is connected to the first end of the guiding flap. The second end of the guiding flap is swingably arranged horizontally around its first end. A vertical channel is formed at the first end of the guiding flap, and the self-locking part is vertically and telescopically connected to the vertical channel. A first pit for placing the self-locking part is formed at the bottom end of the C-shaped hook structure.

[0009] Wherein, when the C-shaped hook structure is pushed out longitudinally outward, the driving part rotates to drive the guiding flap to rotate to the open state through the transmission part, and the self-locking part falls into the first pit.

[0010] Preferably, each guiding unit further includes a rack. The driving part includes a gear and a gear shaft. Among them,

[0011] Installation grooves are formed on both sides of the guard plate structure and open transversely towards the bottom end of the C-shaped hook structure. The rack is connected to the installation grooves. An inner side of the bottom end of the C-shaped hook structure protrudes to form a gear groove. The gear is connected to the gear groove. A connection opening is formed at the gear groove of the C-shaped hook structure. The gear is meshed with the rack through the connection opening. The gear shaft vertically penetrates and extends out of the gear and the gear groove. The bottom end of the gear shaft is connected to one end of the transmission part.

[0012] Preferably, the transmission part includes a gear connecting plate, a pull rod, a flap connecting plate and a connecting shaft. The first end of the gear connecting plate is fixedly connected to the bottom end of the gear shaft. The connecting shaft vertically penetrates and extends out of the first end of the guiding flap. The first end of the flap connecting plate is fixedly connected to the bottom end of the connecting shaft. The top end of the connecting shaft is connected to the first end of the guiding flap. Both ends of the pull rod are respectively hinged to the second end of the gear connecting plate and the second end of the flap connecting plate.

[0013] Preferably, the self-locking part includes a set screw, a spring and a steel ball. The set screw is connected to the top of the vertical channel. The top end of the spring is connected to the set screw, and the bottom end of the spring is connected to the steel ball. The steel ball is used to be placed in the first pit.

[0014] Preferably, a second pit is further formed at the bottom end of the C-shaped hook structure. The second pit is arranged at intervals on the inner side of the connecting shaft along the longitudinal direction.

[0015] Preferably, the guard plate structure includes two guard plates arranged opposite to each other transversely. The guard plates are used to be installed on the track rack. Each guard plate has the installation groove, and an interval space is formed between the two guard plates.

[0016] Preferably, the two alignment paddles are arranged staggeredly in the vertical direction.

[0017] Preferably, both the first concave pit and the second concave pit are curved surface pits.

[0018] Preferably, the second end of the alignment paddle is triangular, and an arc chamfer is provided at the corner end of the triangle.

[0019] Preferably, the depth of the first concave pit and the second concave pit is 90 mm to 100 mm.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] A C-shaped hook alignment structure provided by the present invention includes a C-shaped hook structure, an alignment mechanism, and a guard plate structure. The alignment mechanism includes two alignment units arranged oppositely in the transverse direction. Each alignment unit includes a driving part, a transmission part, a self-locking part, and an alignment paddle. The driving part is connected to the bottom end of the C-shaped hook structure and is rotatably arranged. One end of the transmission part is connected to the driving part, and the other end of the transmission part is connected to the first end of the alignment paddle. The second end of the alignment paddle is swingably arranged horizontally around its first end. A vertical channel is provided at the first end of the alignment paddle. The self-locking part is telescopically connected to the vertical channel in the vertical direction, and a first concave pit for placing the self-locking part is provided at the bottom end of the C-shaped hook structure. When the steel coil is transported to the coil car in this way, the C-shaped hook structure is pushed out longitudinally outward. At this time, the driving part rotates to drive the alignment paddle to rotate to the open state and extend longitudinally through the transmission part, and the self-locking part falls into the first concave pit to form a self-locking state. In this way, the deflected coil car will be deflected back longitudinally towards the C-shaped hook structure after contacting the alignment paddle. Therefore, the steel coil can stably fall onto the groove of the coil car to complete the coil unloading. The whole process does not require manual intervention, ensuring the automated production rhythm and improving the coil transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0023] Figure 1 A three-dimensional schematic diagram of the overall structure in an embodiment of the present invention after removing a guard plate;

[0024] Figure 2 A three-dimensional schematic diagram of the application scenario of the overall structure in an embodiment of the present invention;

[0025] Figure 3 Schematic assembly diagram of the alignment mechanism in an embodiment of the present invention;

[0026] Figure 4 Stereoscopic schematic diagram of the C-shaped hook structure in an embodiment of the present invention;

[0027] Figure 5 Schematic cross-sectional view of the gear groove of the C-shaped hook structure in an embodiment of the present invention;

[0028] Figure 6 Schematic cross-sectional view of the self-locking part of the alignment flap in an embodiment of the present invention;

[0029] Figure 7 Partial schematic diagram of the bottom pit of the C-shaped hook structure in an embodiment of the present invention.

[0030] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings.

[0031] Explanation of the reference numerals in the drawings:

[0032] 10. C-shaped hook structure; 110. First pit; 120. Gear groove; 121. Connection opening; 130. Second pit; 20. Alignment mechanism; 210. Driving part; 211. Gear; 212. Gear shaft; 220. Transmission part; 221. Gear connecting plate; 222. Pull rod; 223. Flap connecting plate; 224. Connecting shaft; 230. Self-locking part; 231. Set screw; 232. Spring; 233. Steel ball; 240. Alignment flap; 30. Guard plate structure; 310. Guard plate; 311. Installation groove; 312. Rack; 40. Coil handling trolley; 410. Groove. Detailed implementation manners

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0037] Please refer to the attached Figure 1-7 , a C-shaped hook guiding structure in an embodiment provided by the present invention includes a C-shaped hook structure 10, a guiding mechanism 20, and a guard plate structure 30. The guard plate structure 30 is used to be installed on a track frame. The guard plate structure 30 has an interval space extending longitudinally. The bottom end of the C-shaped hook structure 10 is movably penetrated through the interval space longitudinally. First of all, it should be noted that the longitudinal direction in this application refers to the direction towards the opening of the C-shaped hook structure 10, and the transverse direction refers to the width direction of the C-shaped hook structure 10. Specifically, please refer to the markings in the attached drawings; different from the prior art where the coiling trolley 40 needs a high positioning accuracy for repeated rotation, although proximity switches are provided, the error often exceeds the tolerance. If it cannot be accurately positioned to align with the C-shaped hook, it will cause the coil unloading to deviate. Therefore, manual intervention for guiding is required, which affects the automation production rhythm. The present application solves the above defects in the prior art by providing a C-shaped hook guiding structure, specifically as follows:

[0038] The guiding mechanism 20 includes two guiding units arranged oppositely along the transverse direction. Each guiding unit includes a driving part 210, a transmission part 220, a self-locking part 230, and a guiding flap 240. Among them, the driving part 210 is connected to the bottom end of the C-shaped hook structure 10 and is rotatably arranged. One end of the transmission part 220 is connected to the driving part 210, the other end of the transmission part 220 is connected to the first end of the guiding flap 240, the second end of the guiding flap 240 is swingably arranged horizontally around its first end, a vertical channel is formed at the first end of the guiding flap 240, the self-locking part 230 is vertically telescopically connected in the vertical channel, and a first pit 110 for placing the self-locking part 230 is formed at the bottom end of the C-shaped hook structure 10. Among them, when the C-shaped hook structure 10 is pushed out longitudinally outward, the driving part 210 rotates to drive the guiding flap 240 to rotate to the open state through the transmission part 220, and the self-locking part 230 falls into the first pit 110.

[0039] Specifically, the C-shaped hook guiding structure includes a C-shaped hook structure 10, a guiding mechanism 20, and a guard plate structure 30. The C-shaped hook structure 10 is an existing C-shaped hook body for transporting coils. The guard plate structure 30 is used to prevent the coils on the C-shaped hook body from falling to both sides. It is installed on a track rack (not shown in the figure) and usually includes two guard plates 310 arranged oppositely along the transverse direction, so as to form a spaced space for the bottom end of the C-shaped hook body to pass through. The guiding mechanism 20 is used to provide a guiding effect to the coil transporting trolley 40 when the C-shaped hook structure 10 is pushed out longitudinally outward. When it is inserted into the groove 410 of the coil transporting trolley 40, the offset coil transporting trolley 40 is brought back to the positive longitudinal orientation through mutual contact, ensuring stable placement when the coil falls.

[0040] Among them, the guiding mechanism 20 includes two guiding units arranged oppositely along the transverse direction to respectively contact two side walls of the groove 410 of the coil transporting trolley 40. Each guiding unit includes a driving part 210, a transmission part 220, a self-locking part 230 and a guiding flap 240. The driving part 210 serves as a power source and is rotatably arranged itself to switch the open / closed state of the whole guiding unit. The transmission part 220 is used for drivingly connecting the guiding flap 240, so that the driving of the driving part 210 cooperates with the transmission of the transmission part 220 to drive the guiding flap 240 to rotate, so as to rotate and switch the open / closed state. The self-locking part 230 is used for locking the whole guiding unit when the guiding flap 240 is in the open state to prevent the guiding flap 240 from rotating back, thus affecting the guiding effect. Therefore, it is installed in the vertical channel at the first end of the guiding flap 240. In this way, when the guiding flap 240 rotates, the self-locking part 230 located in the vertical channel of the guiding flap 240 will also rotate and change its position until it falls into the first pit 110 at the bottom end of the C-shaped hook structure 10 to form a self-locking state. Thus, when the steel coil on the C-shaped hook structure 10 is to be sent onto the coil transporting trolley 40, the whole C-shaped hook structure 10 is longitudinally pushed outwards along the (interval space) under the action of the driving oil cylinder. At the same time, the driving part 210 starts to rotate. The transmission part 220 drives the guiding flap 240 to rotate under the action of the driving part 210, so that the two guiding flaps 240 rotate from the closed state to the open state (the state where the two guiding flaps 240 extend longitudinally), and at the same time the self-locking part 230 falls into the first pit 110. In this way, after the longitudinally extending guiding flap 240 contacts the offset coil transporting trolley 40, the groove 410 of the horizontally inclined coil transporting trolley 40 will be acted on by the two guiding flaps 240 to be guided to the side wall of the groove 410 of the coil transporting trolley 40 and also extend longitudinally, facilitating the subsequent receiving of the steel coil.

[0041] As a preferred embodiment of the present invention, each guiding unit further includes a rack 312, and the driving part 210 includes a gear 211 and a gear shaft 212. Among them,

[0042] Installation grooves 311 are formed on both sides of the guard plate structure 30 with openings facing the bottom end of the C-shaped hook structure 10 along the transverse direction. The rack 312 is connected in the installation grooves 311. An inner side of the bottom end of the C-shaped hook structure 10 is convexly provided with a gear groove 120. The gear 211 is connected in the gear groove 120. A connection opening 121 is formed at the gear groove 120 of the C-shaped hook structure 10. The gear 211 is meshed with the rack 312 through the connection opening 121. The gear shaft 212 vertically penetrates and extends out of the gear 211 and the gear groove 120. The bottom end of the gear shaft 212 is connected to one end of the transmission part 220.

[0043] It should be noted that the driving part 210 adopts a form in which the gear 211 and the rack 312 cooperate to achieve self-rotation. The rack 312 is installed in the installation groove 311 of the guard plate 310. This installation groove 311 needs to be open towards the bottom end of the C-shaped hook structure 10 to ensure that the rack 312 can mesh with the gear 211. The gear 211 is installed in the gear groove 120 at the bottom end of the C-shaped hook structure 10, and a connection opening 121 also needs to be opened on one side of the gear groove 120 close to the guard plate 310 so that a part of the tooth surface of the gear 211 is exposed outside the C-shaped hook structure 10. In this way, the gear 211 can mesh with the rack 312, and the gear shaft 212 drives the transmission part 220 to rotate through the rotation of the gear 211; when the C-shaped hook structure 10 moves outward longitudinally, the position of the gear 211 changes at the same time, and meshing rotation occurs with the rack 312 during the change process to achieve the purpose of self-rotation.

[0044] As a relatively preferred embodiment of the present invention, the transmission part 220 includes a gear connecting plate 221, a pull rod 222, a dial connecting plate 223 and a connecting shaft 224. The first end of the gear connecting plate 221 is fixedly connected to the bottom end of the gear shaft 212. The connecting shaft 224 passes through and extends out of the first end of the guiding dial 240 vertically. The first end of the dial connecting plate 223 is fixedly connected to the bottom end of the connecting shaft 224. The top end of the connecting shaft 224 is connected to the first end of the guiding dial 240. The two ends of the pull rod 222 are respectively hinged to the second end of the gear connecting plate 221 and the second end of the dial connecting plate 223.

[0045] It should be noted that the gear connecting plate 221, the pull rod 222 and the dial connecting plate 223 are all installed at the bottom end of the C-shaped hook structure 10. The gear connecting plate 221 is used to connect with the gear shaft 212, and its first end is fixedly connected to the bottom end of the gear shaft 212 to ensure that the gear connecting plate 221 rotates following the rotation of the gear shaft 212. The second end of the gear connecting plate 221 is used to be hinged to the pull rod 222, and the other end of the pull rod 222 is hinged to the second end of the dial connecting plate 223. The use of hinges can ensure a small change space during transmission rotation and avoid rigid damage; the first end of the dial connecting plate 223 is connected to the bottom end of the connecting shaft 224, and the top end of the connecting shaft 224 is connected to the guiding dial 240; in this way, after the gear 211 rotates, the gear connecting plate 221 rotates, drives the dial connecting plate 223 to rotate through the pull rod 222, and the rotation of the dial connecting plate 223 drives the connecting shaft 224 to rotate, thereby realizing the rotation of the guiding dial 240.

[0046] As a preferred embodiment of the present invention, the self-locking portion 230 includes a set screw 231, a spring 232, and a steel ball 233. The set screw 231 is connected to the top of the vertical channel. The top end of the spring 232 is connected to the set screw 231, and the bottom end of the spring 232 is connected to the steel ball 233. The steel ball 233 is adapted to be placed in the first pit 110.

[0047] It should be noted that the set screw 231 is for installing the spring 232. In this way, the steel ball 233 can move up and down through the spring 232. After the guiding flap 240 rotates to the open state, the steel ball 233 is pressed by the spring 232 and snaps into the first pit 110 to form self-locking. When the guiding flap 240 needs to rotate back, since the output torque provided by the gear 211 is greater than the resisting force of the pit side wall, and under the action of the spherical surface, the steel ball 233 compresses the spring 232 and leaves the first pit 110 to release the self-locking state.

[0048] As a preferred embodiment of the present invention, a second pit 130 is further formed at the bottom end of the C-shaped hook structure 10. The second pit 130 is spaced apart from the inner side of the connecting shaft 224 in the longitudinal direction.

[0049] It should be noted that the second pit 130 is used to provide a self-locking effect when the guiding flap 240 is in the closed state, so as to prevent the guiding flap 240 from moving randomly in the initial state. Therefore, the position of the second pit 130 is located on the inner side of the connecting shaft 224 in the longitudinal direction. It can be understood that the first pit 110 is located on the inner side of the connecting shaft 224 in the transverse direction (the side close to the center line of the C-shaped hook). The first pit 110 and the second pit 130 are located on a circle with the center of the connecting shaft 224, and the angle between the line from the first pit 110 to the connecting shaft 224 and the line from the second pit 130 to the connecting shaft 224 is 90°.

[0050] Furthermore, the two guiding flaps 240 are arranged staggeredly in the vertical direction.

[0051] It should be understood that when the guiding flap 240 is relatively long, arranging them staggeredly in the vertical direction can ensure that they will not block each other when retracted to the closed state.

[0052] Furthermore, both the first pit 110 and the second pit 130 are curved pits.

[0053] It should be noted that the curved pits can better adapt to the snapping in and out of the steel ball 233 and reduce the wear of the steel ball 233. Preferably, to avoid the steel ball 233 being inconvenient to disengage due to too large a depth, and too small a depth resulting in a poor self-locking effect, the depth of the two pits can be set to 90 mm to 100 mm, and those skilled in the art can select according to actual needs.

[0054] Furthermore, the second end of the guiding flap 240 is triangular, and an arc chamfer is provided at the corner end of the triangle.

[0055] It should be noted that the hypotenuse of the triangle facilitates the cutting-in of the groove 410 of the coil transporting trolley 40 with inclined offset. After being completely inserted into the groove 410, it is guided by the longitudinally extending part, and a chamfer is provided at the corner end of its foremost end to reduce the sharp part and avoid abrasion.

[0056] For the convenience of those skilled in the art to understand, the operation process is briefly described as follows:

[0057] When preparing for the coil unloading work, the driving oil cylinder pushes the C-shaped hook structure 10 longitudinally outwards. At this time, as the position of the C-shaped hook structure 10 changes, the internal gear 211 cooperates with the rack 312 in the guard plate 310 to engage and rotate. The gear shaft 212 drives the gear connecting plate 221 to rotate as the gear 211 rotates. The gear connecting plate 221 drives the pull rod 222 to rotate, the pull rod 222 drives the flap connecting plate 223 to rotate, and the connecting shaft 224 connected to the flap connecting plate 223 also rotates accordingly. The rotation of the connecting shaft 224 drives the guiding flap 240 to rotate, so that the guiding flap 240 rotates from the closed state (extending transversely) to the open state (extending longitudinally). At this time, the gear 211 disengages from the rack 312, and the steel ball 233 rotates and falls into the first pit 110 to form a self-locking state. The guiding flap 240 gradually inserts into the groove 410 of the coil transporting trolley 40 to achieve guiding. After the coil transporting trolley 40 is oriented back, the steel coil on the C-shaped hook structure 10 can be unloaded onto the coil transporting trolley 40;

[0058] After the coil unloading work is completed, the driving oil cylinder pulls the C-shaped hook structure 10 longitudinally inwards. At this time, as the C-shaped hook structure 10 retracts, the gear 211 re-engages with the rack 312 and rotates back to drive the guiding flap 240 to rotate back to the closed state. At this time, the steel ball 233 rotates back and falls into the second pit 130 to form a self-locking in the closed state for subsequent coil transportation.

[0059] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A C-shaped hook guiding structure, characterized in that It includes a C-shaped hook structure, a guiding mechanism, and a guard plate structure. The guard plate structure is used to be installed on the track frame. The guard plate structure has a spaced space extending longitudinally. The bottom end of the C-shaped hook structure is movably penetrated through the spaced space longitudinally. Among them, the guiding mechanism includes two guiding units arranged oppositely in the transverse direction. Each guiding unit includes a driving part, a transmission part, a self-locking part, and a guiding flap. Among them, the driving part is connected to the bottom end of the C-shaped hook structure and is rotatably arranged itself. One end of the transmission part is connected to the driving part, the other end of the transmission part is connected to the first end of the guiding flap. The second end of the guiding flap is swingably arranged horizontally around its first end. A vertical channel is opened at the first end of the guiding flap. The self-locking part is telescopically connected to the vertical channel vertically, and a first pit for placing the self-locking part is opened at the bottom end of the C-shaped hook structure. Among them, when the C-shaped hook structure is pushed out longitudinally outward, the driving part rotates to drive the guiding flap to rotate to the open state through the transmission part, and the self-locking part falls into the first pit.

2. The C-type hook guiding structure according to claim 1, characterized in that Each guiding unit further includes a rack. The driving part includes a gear and a gear shaft. Among them, installation grooves are opened on both sides of the guard plate structure with the transverse openings facing the bottom end of the C-shaped hook structure. The rack is connected in the installation grooves. A gear groove is convexly formed on the inner side of the bottom end of the C-shaped hook structure. The gear is connected in the gear groove. A connection opening is opened at the gear groove of the C-shaped hook structure. The gear is meshed with the rack through the connection opening. The gear shaft penetrates vertically and extends out of the gear and the gear groove. The bottom end of the gear shaft is connected to one end of the transmission part.

3. The C-type hook guiding structure according to claim 2, characterized in that, The transmission part includes a gear connecting plate, a pull rod, a flap connecting plate, and a connecting shaft. The first end of the gear connecting plate is fixedly connected to the bottom end of the gear shaft. The connecting shaft penetrates vertically and extends out of the first end of the guiding flap. The first end of the flap connecting plate is fixedly connected to the bottom end of the connecting shaft. The top end of the connecting shaft is connected to the first end of the guiding flap. Both ends of the pull rod are hinged to the second end of the gear connecting plate and the second end of the flap connecting plate respectively.

4. The C-type hook alignment structure according to claim 1, wherein, The self-locking part includes a set screw, a spring, and a steel ball. The set screw is connected to the top of the vertical channel. The top end of the spring is connected to the set screw. The bottom end of the spring is connected to the steel ball. The steel ball is used to be placed in the first pit.

5. The C-type hook alignment structure according to claim 3, wherein A second pit is further opened at the bottom end of the C-shaped hook structure. The second pit is spaced from the inner side of the connecting shaft longitudinally.

6. The C-type hook guiding structure according to claim 2, wherein, The guard plate structure includes two guard plates arranged oppositely in the transverse direction. The guard plates are used to be installed on the track frame. Each guard plate has the installation groove. The spaced space is formed between the two guard plates.

7. The C-type hook guiding structure according to claim 1, characterized in that The two guiding flaps are arranged staggeredly vertically.

8. The C-shaped hook guiding structure according to claim 5, wherein, Both the first pit and the second pit are curved pits.

9. The C-type hook guiding structure according to claim 1, wherein The second end of the guiding and shifting piece is triangular, and an arc chamfer is arranged at the corner end of the triangle.

10. The C-shaped hook guiding structure according to claim 8, wherein, The depths of the first concave pit and the second concave pit are 90 mm to 100 mm.

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