A limiting mechanism and a limiting device

Abstract

The application belongs to the technical field of mechanical parts, and discloses a limiting mechanism and a limiting device, wherein the limiting mechanism comprises a limiting block and a pin, the limiting block can be fixedly connected to a base plate, the limiting block has a first bearing surface, the first bearing surface can abut on the end surface of a product to be limited carried on the base plate, the pin is a plurality of, the plurality of pins are all connected to the limiting block, a locking part is arranged on each pin, the pin can be inserted into a first through hole of the base plate, and the limiting block is fixedly connected to the base plate through the locking part. The first bearing surface is arranged on the limiting block, the first bearing surface is used for carrying and abutting on the product to be limited carried on the base plate, the contact area of limiting is increased, the limiting is safe and stable, and the limiting is convenient to disassemble, the first bearing surface can better disperse the impact force generated by the product to be limited in transportation, and can also play a role in protecting the product to be limited.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cargo loading and transportation, in particular to a limiting mechanism and a limiting device. BACKGROUND

[0002] The steel coil is like a hollow cylinder, which is convenient for storage, transportation and various processing; but because of its large volume, heavy load and cylindrical shape, it is easy to produce load and roll during transportation, especially when subjected to external impact, which can easily cause instability and damage to the transportation equipment.

[0003] The current loading method of steel coil during transportation is mainly vertical installation, horizontal installation or bundled vertical installation. In order to ensure safety during transportation, the steel coil needs to be fixed at a specified position to avoid damage to the steel coil and various safety problems. Among them, the carbon steel coil generally adopts horizontal installation, which needs to be limited on both sides to prevent rolling, and also needs to be limited on both ends to prevent movement. However, the existing technology mainly uses iron chains, steel wires, binding belts and other methods to fix the steel coil, and the end surface is not limited, the side surface and the circumferential direction of the steel coil are point contact or line contact, which has large freedom degree and unstable limiting risk. SUMMARY

[0004] The purpose of the present application is to provide a limiting mechanism and a limiting device, which can limit the end surface of the loaded cargo, and is safe, stable and easy to disassemble.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] The present application first provides a limiting mechanism, which comprises:

[0007] A limiting block, which can be fixedly connected to a base plate, has a first bearing surface, and can abut on the end surface of a product to be limited borne on the base plate;

[0008] A plurality of pins, each of which is connected to the limiting block, has a locking portion, and can be inserted into a first through hole of the base plate and fixedly connected to the base plate through the locking portion.

[0009] Optionally, the pin is fixedly connected to the limiting block, is inserted into the first through hole of the base plate, and is locked with the first through hole; or,

[0010] The pin is connected to the limiting block through a lock chain, the limiting block is provided with a pin hole corresponding to the first through hole of the base plate, the pin passes through the pin hole and the first through hole in sequence, and is locked with the first through hole.

[0011] Optionally, the locking part is a stepped structure arranged circumferentially along the pin, and the stepped structure is capable of cooperating with the corresponding positioning structure of the first through hole and / or the pin hole to be locked.

[0012] Optionally, the limiting block is provided with a first handle.

[0013] The application further provides a limiting device comprising at least two limiting mechanisms.

[0014] Optionally, the limiting device further comprises a limiting beam fixed on the limiting blocks of the at least two limiting mechanisms at the same end of the product to be limited, and the limiting beam has a second bearing surface and a third bearing surface, and the second bearing surface and the third bearing surface are capable of abutting against the end surface of the product to be limited.

[0015] Optionally, the limiting beam and the limiting block are connected through a pin, the pin is fixed on the limiting beam and capable of being inserted into the pin hole on the limiting block, and the pin is locked with the pin hole.

[0016] The pin is connected to the limiting block or the limiting beam through a chain, the limiting beam is provided with a second through hole corresponding to the position of the pin hole, the pin passes through the second through hole and the pin hole in sequence, and the pin is locked with the pin hole.

[0017] Optionally, the limiting beam comprises a cross beam, a cross plate and a vertical plate, the cross beam is fixed on the cross plate and the rear side of the cross beam is aligned with the rear end of the cross plate, the rear side of the cross beam is a second bearing surface, the top end of the vertical plate is connected to the rear end of the cross plate and the rear surface of the vertical plate is aligned with the rear end of the cross plate, and the rear surface of the vertical plate is a third bearing surface; the cross plate is provided with a second through hole and / or a pin.

[0018] Optionally, the limiting beam is provided with a second handle.

[0019] Optionally, the limiting block comprises two connecting plates at an included angle and an accommodating plate, the two connecting plates are both connected perpendicularly to the accommodating plate, and the outer side of the accommodating plate is a first bearing surface; among the two connecting plates, one connecting plate is connected to the base plate in close contact, and the other connecting plate is connected to the cross plate of the limiting beam in close contact.

[0020] The application has the following beneficial effects:

[0021] The limiting mechanism of the application, by setting the first bearing surface on the limiting block, uses the first bearing surface to bear and abut the product to be limited carried on the substrate, increases the contact area of the limiting, and is safe and stable in limiting and convenient in dismounting, the first bearing surface can better disperse the impact force generated by the product to be limited in transportation, and can also play a role in protecting the product to be limited.

[0022] The application sets the pin on the limiting block, and the locking part is arranged on the pin, in the transportation process, the locking part can prevent the pin from sliding or falling out under the special conditions such as impact and bumping, improve the safety and reliability, and the integrated design of the pin and the limiting block can realize the quick dismounting operation of the product to be limited, save time and labor, and reduce the frequent contact of the operator with the product to be limited.

[0023] The limiting device provided by the application comprises two or more limiting mechanisms, the two or more limiting mechanisms abut the end surface of the product to be limited at the same time, the contact area of the limiting can be increased by increasing the first bearing surface, the limiting is safe and stable, and convenient in dismounting, the multiple first bearing surfaces can better disperse the impact force generated by the product to be limited in transportation, and can also play a role in protecting the product to be limited. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of a limiting mechanism provided by the application;

[0025] Figure 1A 、 Figure 1B and Figure 1C are respectively two-dimensional structure schematic views (without pin) of the limiting mechanism shown in FIG. Figure 1

[0026] Figure 2 is a use state schematic view of a limiting mechanism provided by the application;

[0027] Figure 3 is a cooperation structure schematic view of a single-sided clamping convex on the pin and the positioning hole in the limiting mechanism provided by the application;

[0028] Figure 3A 、 Figure 3B and Figure 3C are respectively two-dimensional structure schematic views (without pin) of the limiting mechanism shown in FIG. Figure 3

[0029] Figure 4 is a cooperation structure schematic view of two or more clamping convexes on the pin and the positioning hole in the limiting mechanism provided by the application;

[0030] Figure 4A 、 Figure 4B ​​And Figure 4C are respectively Figure 4 are respectively a top view, a side view and a front view of the limiting mechanism (without the pin) according to the embodiment 1;

[0031] Figure 5 is a structural schematic diagram of the limiting block in the limiting device according to the embodiment 1;

[0032] Figure 6 is a structural schematic diagram of the limiting beam in the limiting device according to the embodiment 1;

[0033] Figure 7 is a schematic diagram of the limiting device in use according to the embodiment 1;

[0034] Figure 8 is a structural schematic diagram of the limiting block in the limiting device according to the embodiment 2;

[0035] Figure 9 is a structural schematic diagram of the limiting beam in the limiting device according to the embodiment 2;

[0036] Figure 10 is a schematic diagram of the limiting block and the limiting beam in the limiting device according to the embodiment 2;

[0037] Figure 11 is a schematic diagram of the limiting device in use according to the embodiment 2;

[0038] Figure 12 is a schematic diagram of the pin connected to the limiting block according to the embodiment 2;

[0039] Figure 13 is a structural schematic diagram of the limiting device according to the embodiment 3.

[0040] In the drawings:

[0041] 100. base plate; 200. product to be limited; 1001. first through hole;

[0042] 1. limiting block; 11. first bearing surface; 12. limiting plate; 13. connecting plate;

[0043] 14. receiving plate; 2. pin; 21. locking portion; 3. pin hole;

[0044] 31. positioning hole; 4. limiting beam; 41. second bearing surface; 42. third bearing surface;

[0045] 43. cross beam; 44. cross plate; 45. vertical plate; 46. reinforcing plate;

[0046] 47. second through hole; 5. first handle; 6. second handle. DETAILED DESCRIPTION

[0047] The application will be further described below in connection with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting on the application. In addition, it should be noted that in the drawings, only the parts related to the application are shown and not all the parts.

[0048] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0049] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0050] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0051] The present embodiment provides a limiting mechanism, see Figures 1-2The limiting mechanism is fixed on the base plate 100 and abuts against the end surface of the product 200 to be limited loaded on the base plate 100, so as to limit the product 200 to be limited. Taking the product 200 to be limited as a steel coil as an example, since the carbon steel coil is fixed in a lying manner in the container during transportation, the two sides and two ends of the steel coil need to be limited. The limiting of the two sides is generally achieved by setting a concave M-shaped base plate 100, which can have a good limiting effect. For the limiting of the two end surfaces of the steel coil, the limiting mechanism provided in the embodiment includes a limiting block 1 and a pin 2. The limiting block 1 can be fixedly connected to the base plate 100. The limiting block 1 has a first bearing surface 11, which can abut against the end surface of the product 200 to be limited loaded on the base plate 100. The pin 2 is provided with a plurality of pins 2, and the plurality of pins 2 are connected to the limiting block 1. Each pin 2 is provided with a locking portion 21, and can be inserted into the first through hole 1001 of the base plate 100 and fixedly connected to the base plate 100 through the locking portion 21.

[0052] The limiting mechanism provided in the embodiment increases the limiting contact area by setting the first bearing surface 11 on the limiting block 1 and using the first bearing surface 11 to bear and abut against the product 200 to be limited loaded on the base plate 100. The limiting is safe and stable, and the first bearing surface 11 can better disperse the impact force generated by the product 200 to be limited during transportation, and can also protect the product 200 to be limited.

[0053] The pin 2 is provided on the limiting block 1, and the locking portion 21 is provided on the pin 2. During transportation, the locking portion 21 can prevent the pin 2 from sliding or falling out under special conditions such as impact and bumping, thereby improving safety and reliability. The integrated design of the pin 2 and the limiting block 1 can realize quick disassembly and assembly of the product 200 to be limited, thereby saving time and effort and reducing the frequent contact of the operator with the product 200 to be limited.

[0054] In actual application of fixing the steel coil, the limiting mechanism is arranged at the two ends of the steel coil to be transported. Figure 2 As shown in FIG. 10, which is a schematic view of the limiting mechanism at the door end in use, during transportation of the steel coil, the steel coil will generate an impact force in the container due to inertia. The first bearing surface 11 of the limiting block 1 in the limiting mechanism abuts against the end surface of the steel coil, thereby preventing displacement of the steel coil and protecting the end surface of the steel coil.

[0055] The connecting mode of the pin 2 and the limiting block 1 has two modes, one is hard connection, and the other is soft connection. Specifically, the pin 2 is fixedly connected with the limiting block 1, the pin 2 is inserted into the first through hole 1001 of the base plate 100 and is locked with the first through hole 1001; or the pin 2 is connected with the limiting block 1 through a lock chain, the limiting block 1 is provided with a pin hole 3 corresponding to the first through hole 1001 of the base plate 100, the pin 2 passes through the pin hole 3 and the first through hole 1001 in sequence and is locked with the first through hole 1001. As shown in Figure 2 , the base plate 100 is provided with a plurality of first through holes 1001, and the limiting block 1 is provided with a plurality of pins 2. If the plurality of pins 2 are fixedly connected at the bottom of the limiting block 1 and the arrangement of the pins 2 is the same as the arrangement rule of the plurality of first through holes 1001 on the base plate 100, and the setting positions are one-to-one corresponding, the pin 2 can be directly pinned to the corresponding first through hole 1001, and the first bearing surface 11 of the limiting block 1 can just abut against the end of the steel coil to realize the fixation of the limiting block 1 and the limiting of the end of the steel coil. The fixed connection mode between the pin 2 and the limiting block 1 includes but is not limited to welding, screwing, pinning and one-piece structure and the like, and the limiting precision is higher, but the structure of the locking portion 21 on the pin 2 can only be an annular groove structure and cannot be rotationally locked.

[0056] Preferably, the pin 2 is connected to the limiting block 1 through a lock chain, as shown in Figure 1 , Figure 1A , Figure 1B and Figure 1C . At this time, the limiting block 1 is provided with a plurality of pin holes 3, and the arrangement rule of the plurality of pin holes 3 is the same as the arrangement rule of the first through holes 1001 on the base plate 100, so that the limiting block 1 can be easily adjusted and fixed according to the arrangement position of the steel coil to meet the fixation needs of various steel coil transportation processes and has good adaptability. In this embodiment, the limiting block 1 is a box body structure, one side of the box body structure is used as the first bearing surface 11, and the upper and lower surfaces are both provided with through pin holes 3. The plurality of pin holes 3 are arranged in two rows in the direction perpendicular to the first bearing surface 11. The four pins 2 are connected with the limiting block 1 through a lock chain, so that the pin 2 is convenient to take, and when not in use, the pin 2 can be stored in the box body or any convenient storage position, thereby saving storage space. When in use, first, the limiting block 1 is placed on the base plate 100 at a suitable position so that the pin hole 3 is aligned with the first through hole 1001 and the first bearing surface 11 is in contact with the end surface of the steel coil. Then, the pin 2 is sequentially inserted into the pin hole 3 on the limiting block 1 and the first through hole 1001 on the base plate 100 to firmly fix the limiting block 1 and the base plate 100 together, so as to realize the limiting of the first bearing surface 11 to the end surface of the steel coil, as shown in Figure 2 .

[0057] Optionally, the locking portion 21 is a stepped structure arranged along the circumference of the pin 2, and the stepped structure can be locked with the corresponding positioning structure of the first through hole 1001 and the pin hole 3.

[0058] The embodiment gives three kinds of step difference structures and the cooperation mode of positioning structure.

[0059] The first kind, the locking part 21 is an annular groove arranged at both ends of the pin 2, and the pin hole 3 and the first through hole 1001 are circular holes. Figure 1 The pin 2 is processed from round steel, and the step difference structure is processed at the root and the end of the pin 2 respectively, specifically two annular grooves, which can cooperate with the pin hole 3 on the limiting block 1 and the first through hole 1001 on the base plate 100 to realize locking. In the transportation process, the step difference structure can prevent the pin 2 from sliding, jumping out due to vibration impact, and falling out under special conditions such as impact and bumping. This step difference structure does not limit the connection mode of the pin 1 and the limiting block 1.

[0060] The second kind, Figure 3 And Figures 3A-3C The locking part 21 on the pin 2 is a single-sided clamping protrusion arranged at the front end, and the protrusion and the pin 2 body form a step difference structure. One side of the pin hole 3 is provided with a positioning hole 31, and the positioning hole 31 and the pin hole 3 form a "convex" through hole. At the same time, after the pin 2 is inserted into the pin hole 3, the pin 2 is rotated, and the locking part 21 is locked in the pin hole 3, so as to ensure that the pin 2 will not be pushed out by impact force in the transportation process. When the clamping protrusion and the positioning hole 31 are aligned, the pin 2 can be pulled out to unlock. Correspondingly, one side of the first through hole 1001 is also provided with a positioning hole 31, and the positioning hole 31 and the first through hole 1001 form a "convex" through hole to lock the pin 2.

[0061] The third kind, the locking part 21 on the pin 2 is two or more clamping protrusions arranged at the front end, and the two or more clamping protrusions and the pin 2 body form a step difference structure. The circumference of the pin hole 3 is provided with two or more positioning holes 31, and the positioning hole 31 and the pin hole 3 form a through hole. When the positioning hole 31 is two, it forms a "middle" type through hole. The positions of the clamping protrusions on the pin 2 and the positioning holes 31 are one-to-one corresponding. After the two or more clamping protrusions on the pin 2 and the positioning holes 31 of the through hole are aligned, the pin 2 is inserted into the pin hole 3, and the pin 2 is rotated. The positions of the clamping protrusions and the positioning holes 3 are offset, so as to be locked, so as to ensure that the pin 2 will not be pushed out by impact force in the transportation process. When the pin 2 needs to be unlocked and pulled out, the clamping protrusions and the positioning holes 31 on the pin hole 3 are aligned again and pulled out. Correspondingly, the circumference of the first through hole 1001 is also provided with a positioning hole 31, and the positioning hole 31 and the first through hole 1001 form a through hole to lock the pin 2.

[0062] Optionally, the limiting block 1 is provided with a first handle 5, which is convenient for moving and operating to disassemble and assemble the limiting block 1. The number of the first handle 5 is not limited to one, which is convenient for one person or more than two operating personnel to operate the limiting mechanism.

[0063] Based on the above-mentioned limiting mechanism, the application further provides a limiting device, which comprises at least two limiting mechanisms. The at least two limiting mechanisms abut against the end face of the steel coil, are limited by the two or more first bearing surfaces 11, increase the bearing area of the limiting, and improve the safety and stability of the limiting.

[0064] Optionally, the limiting device comprises a limiting beam 4 fixed on the limiting blocks 1 of the at least two limiting mechanisms at the same end of the product 200 to be limited, and the limiting beam 4 has a second bearing surface 41 and a third bearing surface 42, both of which can abut against the end face of the product 200 to be limited.

[0065] Optionally, the limiting beam 4 and the limiting block 1 are connected through a pin 2, the pin 2 is fixed on the limiting beam 4 and can be inserted into the pin hole 3 on the limiting block 1 and locked with the pin hole 3; or, the pin 2 is connected to the limiting block 1 or the limiting beam 4 through a lock chain, the limiting beam 4 is provided with a second through hole 47 at a position corresponding to the pin hole 3, the pin 2 passes through the second through hole 47 and the pin hole 3 in sequence and is locked with the pin hole 3.

[0066] The following will be described in detail in combination with Figures 5-13 the connection and positional relationship between the limiting beam 4 and the limiting block 1 in the limiting device through multiple embodiments.

[0067] Embodiment 1:

[0068] In this embodiment, the limiting beam 4 and the limiting block 1 are in a detachable structure. As shown in Figure 5 , the limiting block 1 is provided with two rows of pin holes 3, each row of pin holes 3 corresponds to two pins 2, the first bearing surface 11 is located at one end of the two rows of pin holes 3, and the limiting block 1 is provided with a limiting plate 12 for limiting the limiting beam 4 on the limiting block 1. The limiting plate 12 is a V-shaped opening upwardly formed by two plates, the limiting plate 12 is located between the two rows of pin holes 3 on the limiting block 1, the limiting plate 12 is provided with a third row of pin holes 3, and the pins 2 are connected to the two sides of the limiting block 1 through a lock chain. As shown in Figure 6 , a limiting beam 4 comprises a cross beam 43, a horizontal plate 44 and a vertical plate 45, wherein the cross beam 43 is clamped on the horizontal plate 44 through two reinforcing plates 46, the reinforcing plates 46 are fixed vertically on the horizontal plate 44, and the rear side of the cross beam 43 serves as the second bearing surface 41. The inner side of the vertical plate 45 is connected to the rear end face of the horizontal plate 44, and the rear surface of the vertical plate 45 is coplanar with the rear side of the cross beam 43, the rear surface of the vertical plate 45 serves as the third bearing surface 42, and the vertical plate 45 is perpendicular to the horizontal plate 44. The horizontal plate 44 is provided with a second through hole 47, and four pins 2 are connected to the horizontal plate 44 through a lock chain. In use, as shown in Figure 7, first, the limiting block 1 is fixed on the base plate 100 and locked by inserting the four pins 2 on the limiting block 1 into the two rows of pin holes 3 and the first through hole 1001 on the limiting block 1, and the first bearing surface 11 abuts against the end face of the product 200 to be limited; then the cross plate 44 of the limiting beam 4 is placed on the limiting plates 12 of the two limiting blocks 1, and the four pins 2 on the cross plate 44 are sequentially inserted into the second through hole 47 on the cross plate 44 and the third row of pin holes 3 on the limiting plate 12 to fix the cross plate 44 on the limiting block 1 and lock it, and the second bearing surface 41 and the third bearing surface 42 abut against the end face of the steel coil to be limited.

[0069] Embodiment 2:

[0070] In this embodiment, the limiting beam 4 and the limiting block 1 are detachable structures. As shown in Figure 8 , the limiting block 1 includes two connecting plates 13 at an angle and an abutting plate 14, both of the two connecting plates 13 are perpendicularly connected to the abutting plate 14, among the two connecting plates 13, one connecting plate 13 is connected to the base plate 100, and the other connecting plate 13 is connected to the cross plate 44 of the limiting beam 4. Among them, the two connecting plates 13 are connected by the lock chain pins 2, four pins 2 are connected to the lower connecting plate 13 for pinning the lower connecting plate 13 to the base plate 100, and the pins 2 are connected to the upper connecting plate 13 for pinning the limiting beam 4 to the upper connecting plate 3. The abutting plate 14 is a vertical plate, and the outer side of the abutting plate 14 is the first bearing surface 11 when in use. As shown in Figure 9 , the limiting beam 4 includes a cross beam 43, a cross plate 44 and a vertical plate 45, wherein the cross beam 43 is clamped to the cross plate 44 by two reinforcing plates 46, the reinforcing plates 46 are perpendicularly fixed to the cross plate 44, and the rear side of the cross beam 43 serves as the second bearing surface 41. The top end of the vertical plate 45 is connected to the rear end face of the cross plate 44, and the rear surface of the vertical plate 45 is coplanar with the rear side of the cross beam 43, the rear surface of the vertical plate 45 serves as the third bearing surface 42, the vertical plate 45 is perpendicular to the cross plate 44, and the length of the vertical plate 45 along the axis of the cross beam 43 is less than the length of the cross plate 44. The cross plate 44 is provided with a second through hole 47. When in use, as shown in Figure 10 , the two limiting blocks 1 are opposite in opening, the pins 2 on the lower connecting plate 13 are sequentially inserted into the pin holes 3 and the first through hole 1001 to fix the two limiting blocks 1 on the base plate 100, and the first bearing surface 11, i.e. the outer side of the abutting plate 14, abuts against the end face of the steel coil. A channel is formed between the two opposite opening limiting blocks 1, and the two ends of the cross plate 44 of the limiting beam 4 can slide in the channel from front to back until the rear end of the cross plate 44 stops against the inner side of the abutting plate 14, and then the two pins 2 on the upper connecting plate 13 are sequentially inserted into the pin holes 3 on the upper connecting plate 13 and the second through hole 47 on the cross plate 44 to fix the cross plate 44 of the limiting beam 4 on the two limiting blocks 1, and the second bearing surface 41 and the third bearing surface 42 both abut against the end face of the steel coil as shown in Figure 11 .

[0071] In this embodiment, the pin 2 on the lower connecting plate 13, such as Figure 13 As shown, the pin 2 can also be fixedly connected to the lower connecting plate 13. The fixing method includes, but is not limited to, welding, screwing, pinning or integral molding. The position of the fixedly connected pin 2 corresponds one-to-one with the position of the first through hole 1001 on the substrate 100. When in use, the pin 2 on the limiting block 1 can be directly inserted and fixed on the substrate 100 and locked.

[0072] Example 3:

[0073] In this embodiment, the limiting beam 4 and the limiting block 1 are an integral structure. Figure 13 As shown, the outer side of the receiving plate 14 is the first bearing surface 11. The upper connecting plate 13 of the limiting block 1 and the two ends of the horizontal plate 44 of the limiting beam 4 are integrally formed plates. The horizontal beam 43 is fixed to the horizontal plate 44 by the reinforcing plate 46. The rear side of the horizontal beam 43 is the second bearing surface 41. The vertical plate 45 is connected to the horizontal plate 44 and the rear surface of the vertical plate 45 is coplanar with the rear side of the horizontal beam 43. The bottom of the lower connecting plate 13 of the limiting block 1 is provided with pins 2. The arrangement pattern of the pins 2 is the same as the arrangement pattern of the first through hole 1001 on the base plate 100. The lower connecting plate 13 can be directly inserted into the first through hole 1001 and locked for fixation. The first bearing surface 11, the second bearing surface 41 and the third bearing surface 42 can simultaneously abut against the end face of the steel coil to form a close fit and limit, increase the force-bearing area, better disperse the impact force generated by the steel coil during transportation, and at the same time play a role in protecting the steel coil.

[0074] Optionally, the limiting beam 4 is provided with a second handle 6 to facilitate the movement and operation of the limiting beam 4. The number of second handles 6 is not limited to one, so as to facilitate one or two or more operators to operate the limiting beam 4.

[0075] The pins 2 used above can be used for locking parts 21 with an annular groove structure for fixed connection only. For other chain connection methods, the locking parts 21 can be annular groove, single-sided or two or more locking protrusions. The locking parts 21 can be locked with corresponding positioning structures such as positioning holes 31 in conjunction with the pin hole 3, the first through hole 1001 and the second through hole 47.

[0076] In summary, the limiting structure and device provided by this invention, by setting a first bearing surface 11 on the limiting block 1, achieves bearing and limiting of the contact surface of the steel coil end face, disperses the impact force on the steel coil end face, and also protects the steel coil end face. More preferably, by setting a limiting beam 4, a second bearing surface 41 and a third bearing surface 42 are further provided. The three bearing surfaces together limit the steel coil end face, further increasing or decreasing the area of ​​the limiting bearing surface to achieve a better limiting effect.

[0077] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A position limiting device, characterized by, The limiting device comprises a limiting beam (4) and at least two limiting mechanisms, the limiting mechanism comprising: A limiting block (1) is fixedly connected to the base plate (100), and the limiting block (1) has a first bearing surface (11) which can abut against the end surface of a product (200) to be limited borne on the base plate (100); A plurality of pins (2) are provided, and the plurality of pins (2) are all connected to the limiting block (1), each pin (2) is provided with a locking portion (21), can be inserted into a first through hole (1001) of the base plate (100), and the limiting block (1) is fixedly connected to the base plate (100) through the locking portion (21); The pin (2) is fixedly connected to the limiting block (1), is inserted into the first through hole (1001) of the base plate (100), and is locked with the first through hole (1001); or, The pin (2) is connected to the limiting block (1) through a lock chain, a pin hole (3) corresponding to the first through hole (1001) of the base plate (100) is arranged on the limiting block (1), the pin (2) passes through the pin hole (3) and the first through hole (1001) in sequence, and is locked with the first through hole (1001); The limiting beam (4) is fixedly arranged on the limiting blocks (1) of at least two limiting mechanisms at the same end of the product (200) to be limited, and the limiting beam (4) has a second bearing surface (41) and a third bearing surface (42), both the second bearing surface (41) and the third bearing surface (42) can abut against the end surface of the product (200) to be limited; The limiting beam (4) comprises a cross beam (43), a cross plate (44) and a vertical plate (45), the cross beam (43) is fixed on the cross plate (44), the rear side of the cross beam (43) is the second bearing surface (41), the vertical plate (45) is connected to the cross plate (44), the rear surface of the vertical plate (45) is coplanar with the rear side of the cross beam (43), and the rear surface of the vertical plate (45) is the third bearing surface (42); the cross plate (44) is provided with a second through hole (47); The limiting beam (4) and the limiting block (1) are connected through another pin (2), the other pin (2) is fixed on the limiting beam (4) and can be inserted into the pin hole (3) on the limiting block (1), and is locked with the pin hole (3); or, Another pin (2) is connected to the limiting block (1) or the limiting beam (4) through a lock chain, the limiting beam (4) is provided with a second through hole (47) corresponding to the position of the pin hole (3), the other pin (2) passes through the second through hole (47) and the pin hole (3) in sequence, and is locked with the pin hole (3); The limiting block (1) comprises two connecting plates (13) at an included angle and a receiving plate (14), both the connecting plates (13) are perpendicularly connected to the receiving plate (14), and the outer side of the receiving plate (14) is a first bearing surface (11); among the two connecting plates (13), one connecting plate (13) is connected with the base plate (100) in close contact, and the other connecting plate (13) is connected with the horizontal plate (44) of the limiting beam (4) in close contact.

2. The position-limiting device according to claim 1, characterized in that The locking portion (21) is a stepped structure arranged circumferentially along the pin (2), and the stepped structure can be matched with the corresponding positioning structure of the first through hole (1001) and the pin hole (3) to be locked.

3. The position-limiting device of claim 1, wherein The limiting block (1) is provided with a first handle (5).

4. The position-limiting device of claim 1, wherein The limiting beam (4) is provided with a second handle (6).

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