Portal crane anchoring device

Abstract

The utility model discloses an anchoring device for a portal crane, which relates to the technical field of cranes and comprises a lifting box, an anchoring device and an anchoring device, a through hole for the lifting box to penetrate through is formed in the center of the pore plate; the pressing blocks are connected with the outer side of the middle of the lifting box and used for pressing the pore plate downwards; the walking wheels are mounted on the pore plate and elastically ascend and descend; the track is used for the traveling wheels to move and is parallel to the moving direction of the portal crane; the first rack is connected to the lower side of the pore plate; the length of the second rack is the same as that of the track, and the second rack is located on the lower side of the first rack; according to the utility model, the movable pore plate is supported by the elastic walking wheels, so that the pore plate can be quickly moved to correspond to the anchoring lifting box; when the lifting box descends and extends into the pore plate, the pore plate can be pressed downwards through the pressing block, so that the first rack and the second rack are matched to limit the movement of the pore plate, and the anchoring of the lifting box and the portal crane is further realized; the anchoring work difficulty is reduced, and the anchoring work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field, especially a portal crane anchoring device. BACKGROUND

[0002] The portal crane anchoring device is widely used in port, freight yard and other operation scenes as a key component for ensuring the safety of the crane in non-working state. It is generally composed of anchoring pits, anchoring plates, anchoring columns or anchoring boxes, etc. When the portal crane needs to stop operation and enter the anchoring state, the anchoring plate, anchoring column or anchoring box is inserted into the corresponding anchoring pit to realize the anchoring of the portal crane. It can effectively resist external forces such as strong wind and accidental collision. When subjected to strong wind, the anchoring device can prevent the crane from being blown by the strong wind and avoid colliding with surrounding equipment and buildings, which can significantly enhance the stability of the crane and reduce the probability of safety accidents, effectively protecting the safety of equipment and operation environment. However, in the prior art, the anchoring pit has a small volume and a cross-sectional area slightly larger than the anchoring plate, anchoring column or anchoring box. If the anchoring pit is too large, it cannot effectively limit the movement of the portal crane, and if the anchoring pit is too small, it leads to difficulty in aligning with the anchoring pit. For the portal crane with a high cab position, the anchoring pit position is not easy to be observed by the driver, and workers need to repeatedly adjust the position of the portal crane to correspond with the anchoring pit, which brings many inconveniences to the anchoring work and reduces the anchoring work efficiency. SUMMARY

[0003] The utility model discloses a portal crane anchoring device.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A portal crane anchoring device comprises:

[0006] A lifting box vertically lifts along the portal crane.

[0007] A hole plate has a through hole in the center for the lifting box to pass through.

[0008] A plurality of pressing blocks are connected to the outer side of the middle part of the lifting box and used to press the hole plate downward.

[0009] A plurality of walking wheels are installed on the hole plate and elastically lift.

[0010] A track is used for the movement of the walking wheels and is parallel to the movement direction of the portal crane.

[0011] A first rack is connected to the lower side of the hole plate.

[0012] A second rack has the same length as the track and is located below the first rack.

[0013] Further, the box seat with an opening on the lower side is provided, the lifting box is lifted along the inner side of the box seat, and one side of the box seat is connected with a mounting seat connected with the portal crane.

[0014] Further, the upper wall of the box seat is provided with a vertical screw rod, the screw rod is connected with the upper wall of the box seat through threads, the lower end of the screw rod is rotationally connected with the upper wall of the lifting box, and the upper end of the screw rod is connected with a hand wheel.

[0015] Further, the lower part of the box seat is provided with a plurality of notches matched with the pressing blocks.

[0016] Further, a plurality of inclined swing arms are rotationally connected with the side of the hole plate, the walking wheels are mounted at the lower ends of the swing arms, the connecting positions of the swing arms and the hole plate are provided with torsion springs, the torsion springs swing the swing arms to the vertical state, and the side of the hole plate is provided with limiting rods limiting the swing arms to swing to the vertical state.

[0017] Further, the base pit is also provided, the track and the second rack are both provided in two parallel forms, the two tracks are respectively arranged on the two sides of the base pit, the two second racks are respectively arranged on the two sides of the base pit, and the lower sides of the two edges of the hole plate are connected with the first rack.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The utility model discloses a movable hole plate supported by the elastic walking wheel can be quickly moved to correspond with the anchoring lifting box, the lifting box can be lowered into the hole plate, the hole plate can be pressed down through the pressing block at the same time, the first rack and the second rack are matched to limit the movement of the hole plate, and then the anchoring of the lifting box and the portal crane is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the base pit section state structure schematic view of the utility model.

[0021] Fig. 2 It is the lifting box section state structure schematic view of the utility model.

[0022] Fig. 3 It is the structure schematic view of the utility model.

[0023] In the drawing: 1, lifting box;2, hole plate;3, pressing block;4, walking wheel;5, track;6, first rack;7, second rack;8, box seat;9, mounting seat;10, screw rod;11, hand wheel;12, notch;13, swing arm;14, torsion spring;15, limiting rod;16, base pit. PREFERRED EMBODIMENT

[0024] The utility model makes further detailed description in combination with drawings. The drawings are simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the relevant components of the utility model.

[0025] The specific embodiment of the portal crane anchoring device provided by the utility model:

[0026] Please refer to Figs. 1-3 , the portal crane anchoring device comprises a lifting box 1, a hole plate 2, a plurality of pressing blocks 3, a plurality of travelling wheels 4, a track 5, a first rack 6, a second rack 7, a box seat 8 and a foundation pit 16.

[0027] The lower side of the box seat 8 has an opening, and the box seat 8 is connected with a mounting seat 9 on one side, and the mounting seat 9 is connected with the lower part of the supporting leg of the portal crane or the ground beam, and the connection mode adopts bolt connection.

[0028] The lifting box 1 passes through the opening in the lower side of the box seat 8 and lifts along the inner side of the box seat 8, and the outer side of the lifting box 1 can be stably vertically slid along the inner side of the box seat 8.

[0029] A vertical screw rod 10 is arranged on the upper wall of the box seat 8, and the screw rod 10 is connected with the upper wall of the box seat 8 through threads; the lower end of the screw rod 10 is rotationally connected with the upper wall of the lifting box 1, and the lifting box 1 does not affect the lifting of the screw rod 10, and the screw rod 10 can also drive the lifting box 1 to lift. The upper end of the screw rod 10 is connected with a hand wheel 11.

[0030] Rotating the hand wheel 11 makes the screw rod 10 rotate, and the screw rod 10 is connected with the box seat 8 through threads, so that the screw rod 10 and the lifting box 1 can be lifted, and then the lifting box 1 can be lifted along the vertical direction of the portal crane.

[0031] The hole plate 2 is horizontally arranged and has a through hole in the center for the lifting box 1 to pass through, and the size of the through hole is slightly larger than the cross section of the lifting box 1, so that the lifting box 1 can easily pass through.

[0032] The plurality of pressing blocks 3 are connected with the outer side of the middle part of the lifting box 1, in this embodiment, the cross section of the lifting box 1 and the box seat 8 are both rectangular, the number of the pressing blocks 3 is four, and the four pressing blocks 3 are respectively located on the four sides of the middle part of the lifting box 1. The pressing blocks 3 horizontally extend to the outside of the lifting box 1, and the extension span is greater than the gap width between the inner wall of the through hole of the lifting box 1 and the hole plate 2, and when the lifting box 1 moves downward, the tail end of the pressing block 3 is used for pressing the hole plate 2 downward.

[0033] When the lifting box 1 moves upward and is separated from the hole plate 2, in order to avoid that the box seat 8 blocks the pressing blocks 3, in this embodiment, four notches 12 matched with the pressing blocks 3 are arranged on the lower part of the box seat 8, the four notches 12 are respectively located on the four side walls of the box seat 8, and the four notches 12 correspond to the four pressing blocks 3 respectively.

[0034] The first rack 6 is connected to the lower side of the hole plate 2; the two side edges of the hole plate 2 are bent downward in an inverted U-shaped structure, the number of the first rack 6 is two, the lower side of the two downward-bent edges of the hole plate 2 is connected to the first rack 6, and the tooth opening of the first rack 6 faces downward.

[0035] The shape of the foundation pit 16 is rectangular, the foundation pit 16 can be a reinforced concrete pouring structure or a steel structure, and the height of the foundation pit 16 is not higher than the ground. The number of the second rack 7 is two, the two second racks 7 are parallel to each other, the two second racks 7 are respectively located on the two sides of the foundation pit 16, the tooth opening of the second rack 7 faces upward, and the length of the second rack 7 is much greater than that of the first rack 6. The two second racks 7 are respectively located on the lower side of the two first racks 6.

[0036] When the lifting box 1 and the pressing block 3 press down the hole plate 2, the first rack 6 on the lower side of the hole plate 2 extends into the second rack 7 to form a limit, the second rack 7 makes the hole plate 2 and the lifting box 1 unable to move horizontally, thereby making the portal crane unable to move horizontally. The screw rod 10 and the lifting box 1 press down to make the hole plate 2 and the first rack 6 unable to be separated from the second rack 7 to form a vertical limit. After the lifting box 1 and the pressing block 3 are lifted, the hole plate 2 is moved upward again, the first rack 6 and the second rack 7 can be separated, and the hole plate 2 can move horizontally.

[0037] A plurality of walking wheels 4 are installed on the side of the hole plate 2 and can be elastically lifted; in this embodiment, the number of the walking wheels 4 is four, the walking wheels 4 are located on the outer side of the downward-bent part of the hole plate 2, and there are two walking wheels 4 on each side of the hole plate 2.

[0038] The track 5 is used for moving the walking wheels 4 and is parallel to the moving direction of the portal crane; the track 5 is provided in two parallel tracks, the two tracks 5 are respectively located on the two sides of the foundation pit 16, and the track 5 is located on the outer side of the second rack 7, the length of the second rack 7 is the same as that of the track 5. The cross-sectional shape of the track 5 is inverted L-shaped, and every two walking wheels 4 move along the inner side of one track 5.

[0039] A plurality of inclined swing arms 13 are rotatably connected to the side of the hole plate 2, and the walking wheels 4 are installed at the lower end of the swing arm 13; there are two swing arms 13 on each side of the hole plate 2, and the two swing arms 13 on the same side are distributed in a figure-of-eight shape.

[0040] A torsional spring 14 is arranged at the connection between the swing arm 13 and the hole plate 2, the torsional spring 14 makes the swing arm 13 swing to a vertical state, and a limiting rod 15 is arranged on the side of the hole plate 2 to limit the swing of the swing arm 13 to a vertical state.

[0041] When there is no external force, the four torsional springs 14 make the swing arm 13 support the hole plate 2, and the first rack 6 is automatically separated from the second rack 7, which is convenient for the movement of the hole plate 2. When the lifting box 1 and the pressing block 3 move downward and press down the hole plate 2, the swing arm 13 swings against the elastic force of the torsional spring 14, the swing arm 13 swings to a horizontal state, thereby making the hole plate 2 move downward, and the first rack 6 forms a limiting fit with the second rack 7.

[0042] In some other embodiments, the hole plate 2 is bolted with a mounting plate outside, the swing arm 13 is mounted outside the mounting plate, and the torsion spring 14 is connected between the swing arm 13 and the mounting plate; so that the swing arm 13 and the walking wheel 4 can be detached.

[0043] The foundation pit 16 in the embodiment is longer than the anchor pit in the prior art in size, and anchoring can be achieved everywhere, which is convenient for the driver in the high cab to observe, and the driver can easily correspond the lifting box 1 with the foundation pit 16.

[0044] After the portal crane stops, the ground staff pushes the hole plate 2 to the lower side of the lifting box 1, and then rotates the hand wheel 11 to make the screw rod 10 and the lifting box 1 move downward, and the lifting box 1 passes through the through hole in the center of the hole plate 2.

[0045] The lifting box 1 continues to move downward, the pressing block 3 makes the hole plate 2 move downward, the hole plate 2 overcomes the elastic force of the torsion spring 14 to press the swing arm 13, and the first rack 6 and the second rack 7 are cross-limited and matched, so that the anchoring of the portal crane is achieved.

[0046] When it is needed to release the anchoring state, the hand wheel 11 is only needed to be rotated to make the screw rod 10 and the lifting box 1 move upward to separate the hole plate 2.

[0047] Finally, it needs to be pointed out that the above description is only the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can make the modification without paying the creative labor to the technical scheme recorded in the foregoing embodiments, or make the equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A portal crane anchoring device, characterized in that, The utility model relates to a lifting box (1) is lifted along the vertical direction of the portal crane, a hole plate (2) has a through hole in the center for the lifting box (1) to pass through, a plurality of pressing blocks (3) are connected to the outer side of the middle part of the lifting box (1) and are used for pressing the hole plate (2) downward, a plurality of walking wheels (4) are installed on the hole plate (2) and are elastically lifted, a track (5) is used for the walking wheel (4) to move and is parallel to the moving direction of the portal crane, a first rack (6) is connected to the lower side of the hole plate (2), a second rack (7) is parallel to the track (5) and is located at the lower side of the first rack (6). The utility model further comprises a box seat (8) with an opening in the lower side, the lifting box (1) is lifted along the inner side of the box seat (8), one side of the box seat (8) is connected with a mounting seat (9), and the mounting seat (9) is connected with the portal crane. A vertical screw rod (10) is arranged on the upper wall of the box seat (8) and is connected with the upper wall of the box seat (8) through screw threads, the lower end of the screw rod (10) is rotationally connected with the upper wall of the lifting box (1), and the upper end of the screw rod (10) is connected with a hand wheel (11). A plurality of notches (12) are arranged on the lower part of the box seat (8) and are matched with the pressing blocks (3). A plurality of inclined swing arms (13) are rotationally connected to the side of the hole plate (2), the walking wheels (4) are installed on the lower end of the swing arms (13), torsion springs (14) are arranged at the connection positions of the swing arms (13) and the hole plate (2), the torsion springs (14) swing the swing arms (13) to the vertical state, and the side of the hole plate (2) is provided with limiting rods (15) for limiting the swing arms (13) to swing to the vertical state. The utility model further comprises a foundation pit (16), the track (5) and the second rack (7) are both arranged in parallel in two groups, the two tracks (5) are respectively arranged on the two sides of the foundation pit (16), the two second racks (7) are respectively arranged on the two sides of the foundation pit (16), and the lower sides of the two edges of the hole plate (2) are connected with the first rack (6). ​ ​ 2. Portal crane anchoring device according to claim 1, characterized in that ​ 3. The gantry crane anchoring device of claim 2, wherein, ​ 4. The gantry crane anchoring device of claim 2, wherein, ​ 5. The gantry crane anchoring device of claim 1, wherein, ​ 6. The gantry crane anchoring device of claim 1, wherein, ​

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