High-installability pedal door device of bridge crane

Abstract

The utility model discloses a pedal door device of a bridge crane, which is high in installability and comprises a crane frame, the bottom of the crane frame is fixedly connected with a crane ladder stand, and the top of the crane frame is fixedly connected with a door frame plate. Through cooperation of a first rotating rod, a first protective door, a first driving block, a hydraulic push rod, a second driving block, a second protective door, a first groove, a fixing rod, a half-shaped gear, a second groove, a second rotating rod, a driving gear, a driving rod, an upper control box and a lower control box, the hydraulic push rod is controlled to operate through the upper control box and the lower control box; the output end of a hydraulic push rod drives a first protective door to rotate through a first driving block and a first rotating rod, the first protective door drives a second protective door to rotate through a driving rod and a second driving block, meanwhile, a half gear drives a second rotating rod to rotate through a half gear, and the second rotating rod drives the second protective door to rotate. The occupied area of the protective door in the opening or closing process can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge crane vehicle door technical field, concretely is a kind of high installation of bridge crane door device. BACKGROUND

[0002] Crane is widely used in steel production site, and all processes such as on-site transport, off-line and delivery of steel cannot be separated from the presence of crane, and crane driver needs to climb 2-5m vertical ladder when getting on the car, and accidents such as falling, slipping and crushing caused by misoperation of crane occur from time to time, which has a great impact on safety, production and equipment operation. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a kind of high installation of bridge crane door device, with the advantage of high practicality, solve the problem of low practicality of existing device.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of high installation of bridge crane door device, including crane rack, the bottom of the crane rack is fixedly connected with crane ladder, the top of the crane rack is fixedly connected with door frame plate, one side of the door frame plate is movably connected with first rotating rod, the surface of the first rotating rod is fixedly connected with first protective door, the top of the first rotating rod is movably connected with first driving block, the left side of the top of first driving block is movably connected with hydraulic push rod, the top of the first protective door is movably connected with second driving block, the right side of the bottom of the second driving block is provided with second protective door, the right side of the first protective door is provided with first recess, the inner chamber of the first recess is fixedly connected with fixed rod, the surface of the fixed rod is fixedly connected with half gear, the left side of the second protective door is provided with second recess, the inner chamber of the second recess is movably connected with second rotating rod, the surface of the second rotating rod is fixedly connected with driving gear, the top of the door frame plate is movably connected with driving rod, the inner side of the door frame plate is provided with upper control box, the bottom of the crane rack is provided with lower control box.

[0005] Preferably, one end of the first rotating rod penetrates the door frame plate and extends to the outside of the door frame plate, and the other end of the driving rod is movably connected with the top of the second driving block.

[0006] Preferably, the surface of the hydraulic push rod is movably connected with the surface of the door frame plate through a mounting bracket, and the hydraulic push rod is interlocked with a crane operation system interlock switch.

[0007] Preferably, the first driving block is in the shape of a cam, and the second driving block is in the shape of an L.

[0008] Preferably, the top of the second rotating rod is movably connected with the right side of the bottom of the second driving block.

[0009] Preferably, the surface of the first and second protective doors is provided with an observation window, and the bottom of the first protective door is provided with a pulley.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1、The utility model discloses a first rotating rod, a first protective door, a first drive block, a hydraulic push rod, a second drive block, a second protective door, a first recess, a fixed rod, a half gear, a second recess, a second rotating rod, a drive gear, a drive rod, an upper control box and a lower control box cooperate, the hydraulic push rod is controlled to run through the upper control box and the lower control box, and the output end of the hydraulic push rod drives the first protective door to rotate through the first drive block and the first rotating rod, the first protective door rotates under the drive of the drive rod and the second drive block and drives the second protective door to rotate, simultaneously, the half gear drives the second rotating rod to rotate through the half gear, and the second rotating rod drives the second protective door to rotate, can reduce the area that the protective door occupies in the opening or closing process, and personnel can open and close the protective door at the safe and stable position when getting on or off the vehicle.

[0012] 2、The utility model discloses a hydraulic push rod and a crane running system interlock switch are designed, and the protective door is opened, and the cart running mechanism is prohibited to run, and through the cooperation of the upper control box and the lower control box, personnel can open the protective door at the getting on or off position, and close the protective door in the safe area after the vehicle action is completed. ACCURACY OF DRAWINGS

[0013] Fig. 1 It is the structure schematic drawing of the utility model;

[0014] Fig. 2 It is the structure perspective drawing of the utility model;

[0015] Fig. 3 It is the buffer box structure main view cut of the utility model.

[0016] In the drawing: 1, crane frame;2, crane ladder;3, door frame plate;4, first rotating rod;5, first protective door;6, first drive block;7, hydraulic push rod;8, second drive block;9, second protective door;10, first recess;11, fixed rod;12, half gear;13, second recess;14, second rotating rod;15, drive gear;16, drive rod;17, upper control box;18, lower control box;19, observation window;20, pulley. DETAILED DESCRIPTION

[0017] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0018] Embodiment one:

[0019] Please refer to Figs. 1-3 , in order to realize the purpose of high security, the following technical scheme is provided, specifically discloses: including the crane rack 1, the bottom of the crane rack 1 is fixedly connected with the crane ladder 2, the top of the crane rack 1 is fixedly connected with the door frame plate 3, the side of the door frame plate 3 is movably connected with the first rotating rod 4, the surface of the first rotating rod 4 is fixedly connected with the first protective door 5, the top of the first rotating rod 4 is movably connected with the first driving block 6, the left side of the top of the first driving block 6 is movably connected with the hydraulic push rod 7, the top of the first protective door 5 is movably connected with the second driving block 8, the right side of the bottom of the second driving block 8 is provided with the second protective door 9, the right side of the first protective door 5 is provided with the first recess 10, the inner cavity of the first recess 10 is fixedly connected with the fixed rod 11, the surface of the fixed rod 11 is fixedly connected with the half gear 12, the left side of the second protective door 9 is provided with the second recess 13, the inner cavity of the second recess 13 is movably connected with the second rotating rod 14, the surface of the second rotating rod 14 is fixedly connected with the driving gear 15, the top of the door frame plate 3 is movably connected with the driving rod 16, the inner side of the door frame plate 3 is provided with the upper control box 17, the bottom of the crane rack 1 is provided with the lower control box 18, the hydraulic push rod 7 is controlled to run through the upper control box 17 and the lower control box 18, the output end of the hydraulic push rod 7 drives the first protective door 5 to rotate through the first driving block 6 and the first rotating rod 4, the first protective door 5 drives the second protective door 9 to rotate through the driving rod 16 and the second driving block 8, at the same time, the half gear 12 drives the second rotating rod 14 to rotate through the half gear 12, the second rotating rod 14 drives the second protective door 9 to rotate, which can reduce the area occupied by the protective door during opening or closing, so that the protective door can be opened and closed at a safe and stable position when personnel get on or off the vehicle.

[0020] Embodiment two:

[0021] Please refer to Figs. 1-3The embodiment is used for realizing the purpose of high practicability, and provides the following technical scheme, and specifically discloses that one end of the first rotating rod 4 penetrates through the door frame plate 3 and extends to the outside of the door frame plate 3, the other end of the driving rod 16 is movably connected with the top of the second driving block 8, the surface of the hydraulic push rod 7 is movably connected with the surface of the door frame plate 3 through the mounting rack, the hydraulic push rod 7 is connected with a crane operation system interlock switch, the shape of the first driving block 6 is a cam, the shape of the second driving block 8 is L-shaped, the top of the second rotating rod 14 is movably connected with the right side of the bottom of the second driving block 8, the surfaces of the first protective door 5 and the second protective door 9 are both provided with observation windows 19, and the bottom of the first protective door 5 is provided with a pulley 20.

[0022] In use, the hydraulic push rod 7 is controlled to operate through the upper control box 17 and the lower control box 18, the output end of the hydraulic push rod 7 drives the first protective door 5 to rotate through the first driving block 6 and the first rotating rod 4, the first protective door 5 drives the second protective door 9 to rotate through the driving rod 16 and the second driving block 8, and the second rotating rod 14 is driven to rotate through the half gear 12, the second rotating rod 14 drives the second protective door 9 to rotate, the area occupied by the protective door during opening or closing can be reduced, the protective door control box on the crane can be used by the person to get on or off the crane to open the protective door, the door interlock system is disconnected from the crane control loop power supply after the protective door is opened, the crane is prevented from being misoperated, the protective door is opened or closed through electric control in a safe position after the person gets on or off the crane, the person is prevented from getting on or off the crane in the state that the original end beam door is not opened, a safety accident is avoided, and the safety of the crane system is improved.

[0023] In the description of the patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the patent. In the description of the patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood in a broad sense, for example, can be fixedly connected, set, or can be detachably connected, set, or integrally connected, set. For ordinary skilled persons in the art, the specific meanings of the above terms in the patent can be understood according to the specific circumstances.

[0024] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge crane kick door device with high mountability, comprising a crane frame (1), characterized in that: The bottom of the crane frame (1) is fixedly connected with a crane ladder (2), the top of the crane frame (1) is fixedly connected with a door frame plate (3), one side of the door frame plate (3) is movably connected with a first rotating rod (4), the surface of the first rotating rod (4) is fixedly connected with a first protective door (5), the top of the first rotating rod (4) is movably connected with a first driving block (6), the left side of the top of the first driving block (6) is movably connected with a hydraulic push rod (7), the top of the first protective door (5) is movably connected with a second driving block (8), the right side of the bottom of the second driving block (8) is provided with a second protective door (9), the right side of the first protective door (5) is provided with a first groove (10), the inner cavity of the first groove (10) is fixedly connected with a fixed rod (11), the surface of the fixed rod (11) is fixedly connected with a half gear (12), the left side of the second protective door (9) is provided with a second groove (13), the inner cavity of the second groove (13) is movably connected with a second rotating rod (14), the surface of the second rotating rod (14) is fixedly connected with a driving gear (15), the top of the door frame plate (3) is movably connected with a driving rod (16), the inner side of the door frame plate (3) is provided with an upper control box (17), the bottom of the crane frame (1) is provided with a lower control box (18).

2. A bridge crane kick door device with high mountability according to claim 1, characterized in that: One end of the first rotating rod (4) penetrates through the door frame plate (3) and extends to the outside of the door frame plate (3), the other end of the driving rod (16) is movably connected with the top of the second driving block (8).

3. The bridge crane kick door assembly of claim 1, wherein: The surface of the hydraulic push rod (7) is movably connected with the surface of the door frame plate (3) through a mounting frame, and the hydraulic push rod (7) is interlocked with a crane running system interlocking switch.

4. The bridge crane kick door assembly of claim 1, wherein: The first driving block (6) is in the shape of a cam, and the second driving block (8) is in the shape of an L.

5. The bridge crane kick door assembly of claim 1, wherein: The top of the second rotating rod (14) is movably connected with the right side of the bottom of the second driving block (8).

6. The bridge crane kick door assembly of claim 1, wherein: The surfaces of the first protective door (5) and the second protective door (9) are both provided with an observation window (19), and the bottom of the first protective door (5) is provided with a pulley (20).

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