Stopping mechanism for portal crane and portal crane

Abstract

The utility model discloses a stopping mechanism for a portal crane and the portal crane, and the stopping mechanism comprises a storage box fixedly connected with supporting legs of the portal crane; wherein in the direction perpendicular to the horizontal plane, a hollow area is arranged at the bottom of the storage box; the connecting assembly is arranged on the side face of the storage box; the adjusting rod is rotationally connected with the side face of the storage box through the connecting assembly, and a bent part is arranged at one end of the adjusting rod; a limiting piece; wherein when the projection of at least part of the bending part in the vertical direction is located in the hollow area, the limiting piece is located in the storage box, and when the projection of the bending part in the vertical direction is located outside the hollow area, the limiting piece falls off from the hollow area. By means of the stopping mechanism, the portal crane can be fixed and protected.

Description

Technical Field

[0001] The present application relates to the technical field of lifting machinery, and in particular to a stop mechanism for a gantry crane and a gantry crane. Background Art

[0002] Gantry crane is a large-scale lifting equipment that runs back and forth on a fixed track. It has the characteristics of heavy tonnage and tall structure. When encountering sudden strong convective weather, the gantry crane cannot reach the fixed anchor position in time, which can easily cause the gantry crane to shift and cause safety accidents. In view of this, how to propose a stop mechanism so that the gantry crane can be fixed in time when encountering severe weather such as strong winds to prevent it from shifting under the action of external forces has become an urgent problem to be solved. Utility Model Content

[0003] The main technical problem solved by the present application is to provide a stop mechanism for a gantry crane and a gantry crane, which can fix and protect the gantry crane.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a stop mechanism for a gantry crane, comprising: a storage box, fixedly connected to the legs of the gantry crane; wherein, a hollow area is arranged at the bottom of the storage box in a direction perpendicular to the horizontal plane; a connecting assembly, arranged on the side of the storage box; an adjusting rod, rotatably connected to the side of the storage box through the connecting assembly, and a bending portion is arranged at one end of the adjusting rod; a limiting member; wherein, when at least part of the projection of the bending portion in the vertical direction is located in the hollow area, the limiting member is located in the storage box; when the projection of the bending portion in the vertical direction is located outside the hollow area, the limiting member falls from the hollow area.

[0005] Wherein, the connecting assembly includes a connecting shaft and at least one connecting spring, and the adjusting rod is rotatably connected to the side of the storage box via the connecting shaft; one end of the connecting spring is fixedly connected to the side of the storage box, and the other end is fixedly connected to the adjusting rod, and under the elastic force of the connecting spring, the bent portion of the adjusting rod fits against the bottom of the storage box.

[0006] When the adjusting rod rotates along the first rotation direction, the connecting spring is stretched, and the projection of the bending portion in the vertical direction is located outside the hollow area.

[0007] Wherein, the stopping mechanism further includes: a first baffle fixedly connected to the bending portion; wherein, the first baffle matches the hollow area.

[0008] Wherein, the storage box comprises a first side surface and a second side surface which are arranged opposite to each other, the first side surface and the second side surface are respectively provided with the connecting components, and the connecting components are connected to the corresponding adjusting rods.

[0009] Wherein, a flippable second baffle is arranged at the bottom of the storage box, and the bending portion is used to make the second baffle fit the hollow area.

[0010] Wherein, the legs of the gantry crane move along guide rails, and the mechanism further comprises: a moving assembly connected to the storage box, and the moving assembly comprises supporting bottom wheels matching the guide rails.

[0011] Wherein, when the guide rail is a T-shaped guide rail, the supporting bottom wheel is provided with a accommodating cavity matching the T-shaped guide rail, and at least a part of the T-shaped guide rail is located in the accommodating cavity, so that the supporting bottom wheel moves along the T-shaped guide rail.

[0012] Wherein, the limiting member includes at least one stopping sandbag, and the stopping sandbag is used to limit the supporting legs of the gantry crane.

[0013] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a gantry crane, including a gantry and a leg; wherein the leg includes the stop mechanism mentioned in any of the above technical solutions.

[0014] The beneficial effects of the present application are as follows: Different from the prior art, the stop mechanism for a gantry crane proposed in the present application is provided with a storage box on the legs of the gantry crane, and a rotatable adjustment rod is connected to the side of the storage box. When the adjustment rod is not rotated, the bent portion of the adjustment rod is located directly below the hollow area at the bottom of the storage box to prevent the limiting member in the storage box from falling. When it is necessary to limit the legs of the gantry crane, the adjustment rod is rotated so that the limiting member falls from the storage box through the hollow area. The stop mechanism reduces the difficulty of limiting the legs of the gantry crane, which helps to protect the gantry crane to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0016] Figure 1 It is a structural schematic diagram of an implementation mode of a stop mechanism for a gantry crane of the present application;

[0017] Figure 2 is a schematic cross-sectional structural diagram of an embodiment of a storage box;

[0018] Figure 3 It is a structural schematic diagram of another embodiment of the stop mechanism for a gantry crane of the present application;

[0019] Figure 4 It is a structural schematic diagram of another embodiment of the stop mechanism for a gantry crane of the present application;

[0020] Figure 5 It is a structural schematic diagram of an embodiment of the gantry crane of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments, and different embodiments can be adaptively combined. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0023] The terms "first" and "second" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0024] See also Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of an embodiment of a stop mechanism for a gantry crane of the present application. Figure 2It is a schematic cross-sectional structural diagram of an embodiment of a storage box, wherein the stop mechanism includes a storage box 10, a connecting assembly 20, an adjusting rod 30 and a limiting member 40.

[0025] Specifically, the storage box 10 is fixedly connected to the legs of the gantry crane. In a direction perpendicular to the horizontal plane, a hollow area 11 is provided at the bottom of the storage box 10.

[0026] In one implementation scenario, a bottom plate is provided at the bottom of the storage box 10, and a hollow area 11 is provided on the bottom plate. The specific shape and size of the hollow area 11 can be set according to actual conditions.

[0027] Optionally, in another implementation scenario, no bottom plate is provided at the bottom of the storage box 10 , that is, the entire bottom of the storage box 10 is a hollow area 11 .

[0028] The connection assembly 20 is disposed on the side of the storage box 10. The adjustment rod 30 is rotatably connected to the side of the storage box 10 through the connection assembly 20, and a bending portion 31 is disposed at one end of the adjustment rod 30. When at least part of the projection of the bending portion 31 in the vertical direction is located in the hollow area 11, the stopper 40 is located in the storage box 10; when the projection of the bending portion 31 in the vertical direction is located outside the hollow area 11, the stopper 40 falls from the hollow area 11.

[0029] Specifically, the adjusting rod 30 can be rotated along the first rotation direction A through the connecting assembly 20. When the adjusting rod 30 is not rotated, part of the bent portion 31 is in close contact with the edge of the hollow area 11, and at least part of the projection of the bent portion 31 in the vertical direction is located in the hollow area 11, that is, at least part of the bent portion 31 is located directly below the hollow area 11, so as to block the stopper 40 in the storage box 10. Alternatively, when the adjusting rod 30 is rotated along the first rotation direction A, the bent portion 31 is separated from the edge of the hollow area 11, and when the adjusting rod 30 is rotated to a certain angle, the bent portion 31 leaves the hollow area 11, that is, the projection of the bent portion 31 in the vertical direction is located outside the hollow area, and at this time, the stopper 40 falls from the storage box 10 through the hollow area 11.

[0030] The stop mechanism for a gantry crane proposed in the present application is provided with a storage box 10 on the legs of the gantry crane, and a rotatable adjustment rod 30 is connected to the side of the storage box 10. When the adjustment rod 30 is not rotated, the bent portion 31 of the adjustment rod 30 is located directly below the hollow area 11 at the bottom of the storage box 10 to prevent the stopper 40 in the storage box 10 from falling. When the legs of the gantry crane need to be limited, the adjustment rod 30 is rotated so that the stopper 40 falls from the storage box 10 through the hollow area 11. The stop mechanism reduces the difficulty of limiting the legs of the gantry crane, which helps to protect the gantry crane to a certain extent.

[0031] In one embodiment, please continue to refer to Figure 1 and Figure 2 The connecting assembly 20 includes a connecting shaft 21 and at least one connecting spring 22 . The adjusting rod 30 is rotatably connected to the side of the storage box 10 via the connecting shaft 21 , that is, the adjusting rod 30 can be rotated along the first rotation direction A via the connecting shaft 21 .

[0032] One end of the connecting spring 22 is fixedly connected to the side of the storage box 10 , and the other end is fixedly connected to the adjusting rod 30 . Under the elastic force of the connecting spring 22 , the bending portion 31 of the adjusting rod 30 fits with the bottom of the storage box 10 .

[0033] Specifically, Figure 1 and Figure 2 As shown, when the adjusting rod 30 rotates along the first rotation direction A, the connecting spring 22 is stretched, and the projection of the bending portion 31 in the vertical direction is located outside the hollow area 11; that is, the bending portion 31 leaves the bottom of the hollow area 11, so that the limiting member 40 in the storage box 10 falls off, and the fallen limiting member 40 is used to limit the legs of the gantry crane, thereby improving the stability of the gantry crane.

[0034] The number and related parameters of the connecting springs 22 can be set according to actual conditions, so that when the adjusting rod 30 is not rotated, the elastic force of the connecting spring 22 can enable the bending portion 31 of the adjusting rod 30 to support the stopper 40 in the storage box 10. By setting the connecting spring 22, the adjusting rod 30 can automatically return to the original position under the elastic force of the connecting spring 22 after being rotated in the first rotation direction A, which improves the convenience of operation for relevant technicians.

[0035] In another embodiment, please continue to refer to Figure 1 and Figure 2 In order to improve the stability of the stopper 40 in the storage box 10, the stopper mechanism proposed in the present application further includes a first baffle (not shown) that can be arranged to be fixedly connected to the bending portion 31. The first baffle matches the hollow area 11.

[0036] In one implementation scenario, when the hollow area 11 is a rectangular opening, the bent portion 31 is connected to a rectangular first baffle, the size of the first baffle is larger than the size of the hollow area 11, so that the first baffle can completely cover the hollow area 11. When the adjustment rod 30 is not rotated along the first rotation direction A, the first baffle covers the hollow area 11 to prevent the stopper 40 from falling; or, when the adjustment rod 30 is rotated along the first rotation direction, the first baffle leaves the bottom of the hollow area 11, so that the stopper 40 falls.

[0037] In another embodiment, please combine Figure 1 and Figure 2 See also Figure 3 , Figure 3 1 is a schematic diagram of another embodiment of the stop mechanism for a gantry crane of the present application. In this embodiment, the storage box 10 includes a first side surface 12 and a second side surface 13 that are oppositely disposed, and the first side surface 12 and the second side surface 13 are respectively provided with a connecting assembly 20, and the connecting assembly 20 is respectively connected to a corresponding adjusting rod 30.

[0038] Specifically, in order to improve the stability of supporting the limiter 40 in the storage box 10, corresponding connecting components 20 and adjusting rods 30 are respectively provided on the first side 12 and the second side 13 of the storage box 10, so that the adjusting rods 30 on both sides can support the limiter 40 in the storage box 10 together. When it is necessary to use the limiter 40 in the storage box 10 to limit the legs of the gantry crane, the adjusting rods 30 on both sides of the storage box 10 are rotated along the corresponding rotation direction at the same time, so that the bending portion 31 of each adjusting rod 30 leaves the bottom of the hollow area 11, and the limiter 40 in the storage box 10 falls on the running path of the legs of the gantry crane to limit the gantry crane. It should be noted that Figure 3 The structure of the connecting components 20 on both sides of the storage box 10 is only schematically drawn. The specific structure and connection relationship of the adjustment rod 30 connected to each group of connecting components 20 can be referred to the description in any of the above embodiments and will not be repeated here.

[0039] Optionally, in other embodiments, according to Figure 3 Corresponding to the stop mechanism, the first side 12 and the second side 13 of the storage box 10 are respectively provided with a connecting assembly 20, each connecting assembly 20 is connected to a corresponding adjusting rod 30, and the bending portion 31 of each adjusting rod 30 is connected to a first baffle. When the adjusting rod 30 is not rotated, the two first baffles are combined with each other to cover the hollow area 11. The specific structure of the first baffle can refer to the above corresponding embodiment.

[0040] In another embodiment, please combine Figure 1 and Figure 2 See also Figure 4 , Figure 4 In order to improve the storage stability of the stopper 40 in the storage box 10, a reversible second baffle 50 is provided at the bottom of the storage box 10, and the bending portion is used to make the second baffle 50 fit the hollow area 11.

[0041] Specifically, when the first side surface 12 of the storage box 10 is provided with the connecting assembly 20 and the adjusting rod 30, a rotating shaft 51 is provided at the bottom of the second side surface 13 corresponding to the first side surface 12, and the second baffle 50 is rotatably connected to the second side surface 13 of the storage box 10 through the rotating shaft 51. When the adjusting rod 30 is not rotated, the second baffle 50 covers the hollow area 11, and the bent portion 31 of the adjusting rod 30 is used to support the second baffle 50, so that the bent portion 31 and the second baffle 50 cooperate to prevent the stopper 40 in the storage box 10 from falling. Alternatively, when the adjusting rod 30 is rotated, the bent portion 31 of the adjusting rod 30 no longer supports the second baffle 50, and the second baffle 50 rotates around the rotating shaft 51 under the action of gravity and no longer covers the hollow area 11, under which the stopper 40 in the storage box 10 falls.

[0042] In another embodiment, please continue to refer to Figure 1 , the legs of the gantry crane move along the guide rails 60, and the stop mechanism proposed in the present application also includes a moving assembly 70 connected to the storage box 10, and the moving assembly 70 includes a supporting bottom wheel 71 matching the guide rails.

[0043] In one implementation scenario, when the guide rail 60 is a T-shaped guide rail, the support bottom wheel 71 is provided with a accommodating cavity 72 matching the T-shaped guide rail, and at least a portion of the T-shaped guide rail is located in the accommodating cavity 72, so that the support bottom wheel 71 moves along the T-shaped guide rail.

[0044] Specifically, in order to improve the stability of the stop mechanism when it moves with the legs of the gantry crane, a corresponding moving component 70 is set at the bottom of the storage box 10 of the stop mechanism, so that when the limiting member 40 in the storage box 10 falls, the movement of the supporting bottom wheel 71 is preferentially blocked, thereby limiting the legs of the gantry crane.

[0045] Optionally, in other embodiments, the movable assembly 70 may not be provided at the bottom of the storage box 10, so that the gantry crane legs can be directly limited by the limiting member 40 to simplify the structure of the stop mechanism.

[0046] In another embodiment, please continue to refer to Figure 1The limiting member 40 mentioned in any of the above embodiments includes at least one stopping sandbag, which is used to limit the legs of the gantry crane, and when the number of stopping sandbags is greater, the effect of limiting the legs of the gantry crane is better.

[0047] In one embodiment, see Figure 5 , Figure 5 It is a structural schematic diagram of an embodiment of a gantry crane of the present application. The gantry crane comprises a gantry 80 and a support leg 90. The support leg 90 comprises a stopper mechanism 100 mentioned in any of the above embodiments.

[0048] In an implementation scenario, please continue to refer to Figure 1 Since the gantry crane includes at least one leg 90, in order to improve the stability of the stopper, the stopper mechanism 100 mentioned in any of the above embodiments is provided on each leg 90.

[0049] Furthermore, since the leg 90 of the gantry crane can move forward or backward along the guide rail 60, the stop mechanism 100 mentioned in any of the above embodiments is arranged on one side of the forward direction of the leg 90, and the stop mechanism 100 mentioned in any of the above embodiments is also arranged on one side of the backward direction of the leg 90, so that different limit members 40 can limit the movement of the leg in the forward and backward directions.

[0050] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A stop mechanism for a gantry crane, characterized in that: include: A storage box is fixedly connected to the legs of the gantry crane; wherein a hollow area is provided at the bottom of the storage box in a direction perpendicular to the horizontal plane; A connecting assembly, arranged on a side of the storage box; An adjusting rod, rotatably connected to the side of the storage box through the connecting assembly, and a bending portion is provided at one end of the adjusting rod; A limiting member; wherein, when at least part of the projection of the bent portion in the vertical direction is located within the hollow area, the limiting member is located within the storage box; when the projection of the bent portion in the vertical direction is located outside the hollow area, the limiting member falls from the hollow area.

2. The stop mechanism according to claim 1, characterized in that: The connecting assembly includes a connecting shaft and at least one connecting spring, and the adjusting rod is rotatably connected to the side of the storage box through the connecting shaft; One end of the connecting spring is fixedly connected to the side of the storage box, and the other end is fixedly connected to the adjusting rod. Under the elastic force of the connecting spring, the bending portion of the adjusting rod fits with the bottom of the storage box.

3. The stop mechanism according to claim 2, characterized in that: When the adjusting rod rotates along the first rotation direction, the connecting spring is stretched, and the projection of the bent portion in the vertical direction is located outside the hollow area.

4. The stop mechanism according to claim 1, characterized in that: Also includes: A first baffle fixedly connected to the bending portion; wherein the first baffle matches the hollow area.

5. The stop mechanism according to claim 1, characterized in that: The storage box comprises a first side surface and a second side surface which are arranged opposite to each other, the first side surface and the second side surface are respectively provided with the connecting components, and the connecting components are connected to the corresponding adjusting rods.

6. The stop mechanism according to claim 1, characterized in that: A flippable second baffle is provided at the bottom of the storage box, and the bending portion is used to make the second baffle fit the hollow area.

7. The stop mechanism according to claim 1, characterized in that: The legs of the gantry crane move along the guide rails, and the mechanism further comprises: A moving assembly connected to the storage box includes supporting bottom wheels matched with the guide rails.

8. The stop mechanism according to claim 7, characterized in that: When the guide rail is a T-shaped guide rail, the support bottom wheel is provided with a receiving cavity matching the T-shaped guide rail, and at least a part of the T-shaped guide rail is located in the receiving cavity, so that the support bottom wheel moves along the T-shaped guide rail.

9. The stop mechanism according to claim 1, characterized in that: The limiting member includes at least one stopping sandbag, and the stopping sandbag is used to limit the supporting legs of the gantry crane.

10. A gantry crane, characterized in that: It comprises a door frame and a supporting leg; wherein the supporting leg comprises the stopping mechanism described in any one of claims 1 to 9 above.

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