An electric single-girder crane

Abstract

The present invention discloses an electric single-girder crane, comprising a support column and an electric hoist. An adjustment mechanism is provided at the upper end of the support column. The adjustment mechanism comprises a fixed rod fixedly provided at the upper end of the support column, a sliding groove is provided at the front end of the fixed rod, a limiting hole is provided on the side of the front end of the fixed rod close to the sliding groove, a movable frame is provided on the outer side of the fixed rod for sliding, and a linkage frame is provided on the outer side of the fixed rod close to the upper sliding side of the movable frame. The electric single-girder crane described in the present invention facilitates changing the height of the electric hoist from the ground by pulling the movable frame to slide along the fixed rod and causing the linkage frame to drive the linkage frame to slide in the inner side of the sliding groove, thereby reducing the operating time of the electric hoist and improving the work efficiency of workers.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, in particular to an electric single-girder crane. Background Art

[0002] Electric single-girder crane is a light and small lifting equipment that runs on I-beam track. It is divided into electric and manual types. Heavy objects are hung on it. It is relatively simple and has many applications. It mainly consists of electric hoist, metal structure, trolley running mechanism, feeding device and electrical device.

[0003] Traditional electric single-girder cranes have some shortcomings. During daily operation, since the height of the electric hoist from the ground remains unchanged, when the height of the objects to be lifted is not high, the workers operate the electric hoist too much, causing the electric hoist to loosen the hook. At the same time, the moving time of the hook increases, which increases the workload of the workers and reduces work efficiency. Summary of the Invention

[0004] The main purpose of the present invention is to provide an electric single-girder crane that can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod is pivotally connected to said linking rod and said adjusting base is pivotally connected to said linking rod. said linking rod is pivotally connected to said linking rod of said movable frame. said linking rod is pivotally connected to said linking rod of said movable frame. said linking rod is pivotally connected to said linking rod of said linking rod. said linking rod is pivotally connected to said linking rod of said linking rod. said linking rod is pivotally connected to said linking rod of said linking rod. said linking rod is pivotally connected to said linking rod of said linking rod. said linking rod is pivotally connected to said linking rod of said linking rod. said linking rod is pivotally connected to said linking rod of said linking rod. said linking rod is pivotally connected to said linking rod of said linking rod.

[0007] Preferably, a knob is fixedly provided at the front end of the threaded rod, and a limiting plate is fixedly provided at the upper end of the fixing rod.

[0008] Preferably, a mounting rod is fixedly provided at one end of the movable frame, and a connecting ring is fixedly provided at the other end of the mounting rod.

[0009] Preferably, there are multiple groups of limiting holes, and the upper end of the connecting rod is fixedly connected to the lower end of the linkage frame.

[0010] Preferably, the connecting rod passes through the interior of the connecting frame, and the connecting rod and the connecting frame are fixedly connected.

[0011] Preferably, the front end of the internal threaded ring is movably connected to the rear end of the limiting frame, and the axis lines of the limiting rod, the threaded rod and the knob are located on a straight line.

[0012] Preferably, the connecting rod, the limiting rod, the limiting frame, the threaded rod, the internal threaded ring, and the knob are each in two groups, and the movable frame is in a U-shape.

[0013] Preferably, a support base is fixedly provided at the lower end of the support column, and a fixing groove is provided at the upper end of the support base near the front side of the support column.

[0014] Preferably, a supporting cross bar is fixedly provided at one end of the movable frame, a slide rail is fixedly provided at the lower end of the supporting cross bar, and a sliding frame is slidably provided on the outer side of the slide rail.

[0015] Preferably, the electric hoist is installed at the lower end of the sliding frame, a hook is fixedly provided at the lower end of the sliding frame, there are two groups of fixing grooves, and the shape of the slide rail is T-shaped.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By pulling the movable frame to slide along the fixed rod and making the linkage frame drive the linkage rod to slide in the inner side of the sliding groove, the movable frame drives the electric hoist to move, which can achieve the purpose of facilitating the change of the height of the electric hoist from the ground, thereby reducing the operating time of the electric hoist and improving the work efficiency of workers.

[0018] 2. By sliding the sliding frame along the slide rail, the electric hoist can be easily moved horizontally. Secondly, by inserting the screw into the inner side of the two sets of fixing grooves and screwing the screw into the ground, the support column can be easily fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an electric single-girder crane of the present invention;

[0020] Figure 2 This is a schematic structural diagram of an adjustment mechanism of an electric single-girder crane of the present invention;

[0021] Figure 3 This is a schematic diagram of the partial structure of the adjustment mechanism of an electric single-beam crane of the present invention. Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the partial structure of the adjustment mechanism of an electric single-beam crane of the present invention. Figure 2 ;

[0023] Figure 5This is a schematic diagram of the partial structure of the adjustment mechanism of an electric single-beam crane of the present invention. Figure 3 .

[0024] In the figure: 1. Support column; 2. Electric hoist; 3. Support base; 4. Fixing groove; 5. Support cross bar; 6. Slide rail; 7. Adjustment mechanism; 71. Fixing rod; 72. Sliding groove; 73. Limiting hole; 74. Moving frame; 75. Linking frame; 76. Connecting rod; 77. Linking rod; 78. Limiting rod; 79. Limiting frame; 710. Threaded rod; 711. Internal threaded ring; 712. Knob; 713. Limiting plate; 714. Mounting rod; 715. Connecting ring; 8. Sliding frame; 9. Hook. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-5 As shown, an electric single-girder crane includes a support column 1 and an electric hoist 2. The upper end of the support column 1 is provided with an adjusting mechanism 7. The adjusting mechanism 7 includes a fixed rod 71 fixedly arranged at the upper end of the support column 1. The front end of the fixed rod 71 is provided with a sliding groove 72. The front end of the fixed rod 71 is provided with a limiting hole 73 on the side near the sliding groove 72. A moving frame 74 is slidingly provided on the outer side of the fixed rod 71. A linkage frame 75 is provided on the outer side of the fixed rod 71 near the last sliding of the moving frame 74. A connecting rod 76 is fixedly provided on the upper end of the moving frame 74. A linkage rod 77 is slidingly provided on the inner side of the sliding groove 72. A limiting rod 78 is movably provided on the inner side of the limiting hole 73. A limiting frame 79 is fixedly provided at one end of the connecting rod 76. A threaded rod 710 is provided on the inner side of the limiting frame 79. An inner threaded ring 711 is provided on the outer side of the threaded rod 710 near the rear side of the limiting frame 79.

[0027] In this embodiment, the front end of the threaded rod 710 is fixedly provided with a knob 712, the upper end of the fixed rod 71 is fixedly provided with a limiting plate 713, one end of the movable frame 74 is fixedly provided with a mounting rod 714, and the other end of the mounting rod 714 is fixedly provided with a connecting ring 715. There are multiple groups of limiting holes 73. The upper end of the connecting rod 76 is fixedly connected to the lower end of the linkage frame 75, the linkage rod 77 passes through the interior of the linkage frame 75, and the linkage rod 77 is fixedly connected to the linkage frame 75. The front end of the internal threaded ring 711 is movably connected to the rear end of the limiting frame 79. The axial lines of the limiting rod 78, the threaded rod 710, and the knob 712 are located in a straight line. There are two groups of connecting rods 76, limiting rods 78, limiting frames 79, threaded rods 710, internal threaded rings 711, and knobs 712. The shape of the movable frame 74 is U-shaped.

[0028] When the locking cam 750 is in the unlocked position, the locking cam 750 is in the unlocked position, and the locking cam 750 is locked, so that the winch 700 is locked and the winch 700 is unlocked. The inner side of the internal threaded ring 711 is then screwed, so that the internal threaded ring 711 contacts the limiting frame 79, so that the internal threaded ring 711 limits the rotation of the threaded rod 710, thereby limiting the rotation of the limiting rod 78 in the inner side of the limiting hole 73, so that the movable frame 74 is fixed to the outer side of the fixed rod 71, and the height of the electric hoist 2 from the ground remains unchanged. At this time, the hook 9 is closer to the ground, so the electric hoist 2 can be operated for a long time, so that the hook 9 is easy to hook objects, and by pulling the movable frame 74 to slide along the fixed rod 71 and making the linkage frame 75 drive the linkage rod 77 to slide in the inner side of the sliding groove 72, so that the movable frame 74 drives the electric hoist 2 to move, which can achieve the purpose of facilitating the change of the height of the electric hoist 2 from the ground, thereby reducing the operating time of the electric hoist 2 and improving the work efficiency of the workers.

[0029] In this embodiment, a support base 3 is fixedly provided at the lower end of the support column 1, a fixing groove 4 is provided at the upper end of the support base 3 near the front side of the support column 1, a support cross bar 5 is fixedly provided at one end of the movable frame 74, a slide rail 6 is fixedly provided at the lower end of the support cross bar 5, a sliding frame 8 is slidingly provided on the outer side of the slide rail 6, the electric hoist 2 is installed at the lower end of the sliding frame 8, a hook 9 is fixedly provided at the lower end of the sliding frame 8, there are two groups of fixing grooves 4, and the shape of the slide rail 6 is T-shaped.

[0030] Specifically, by sliding the sliding frame 8 along the sliding rail 6, the purpose of facilitating the transverse movement of the electric hoist 2 can be achieved. Secondly, by inserting the screw into the inner side of the two sets of fixing grooves 4 and screwing the screw into the ground, the purpose of facilitating the fixing of the support column 1 can be achieved.

[0031] Working principle:

[0032] When in use, the worker first uses a crane to hook the connecting ring 715, and then screws the internal threaded ring 711, so that the internal threaded ring 711 moves along the threaded rod 710 to the side away from the limiting frame 79, and then turns the knob 712, so that the knob 712 drives the threaded rod 710 to rotate inside the limiting frame 79, and the threaded rod 710 moves outward inside the limiting frame 79, and the threaded rod 710 drives the limiting rod 78 to disengage from the limiting hole 73, and then moves the connecting ring 715 by the crane, and makes the connecting ring 715 pass through the installation The mounting rod 714 drives the movable frame 74 to slide along the fixed rod 71, and the movable frame 74 drives the supporting cross bar 5 to slide, so that the supporting cross bar 5 drives the electric hoist 2 to slide through the slide rail 6 and the sliding frame 8, and the movable frame 74 drives the linkage frame 75 to slide along the fixed rod 71 through the connecting rod 76, so that the linkage frame 75 drives the linkage rod 77 to slide on the inner side of the sliding groove 72, and at the same time the linkage rod 77 slides on the inner side of the sliding groove 72, which can ensure the stability of the movable frame 74 sliding along the fixed rod 71. At this time, the height of the electric hoist 2 from the ground is When the degree reaches the appropriate height, the limiting rod 78 corresponds to the new set of limiting holes 73, and then the knob 712 is rotated in the opposite direction to make the threaded rod 710 move in the opposite direction inside the limiting frame 79, so that the threaded rod 710 inserts the limiting rod 78 into the inner side of the new set of limiting holes 73, and then the internal threaded ring 711 is screwed, so that the internal threaded ring 711 contacts the limiting frame 79, so that the internal threaded ring 711 limits the rotation of the threaded rod 710, thereby limiting the limiting rod 78 to the inner side of the limiting hole 73, so that the movable frame 74 is fixed. The outer side of the fixed rod 71 is fixed, and the height of the electric hoist 2 from the ground remains unchanged. At this time, the hook 9 is closer to the ground, so the operation time of the electric hoist 2 can be controlled, so that the hook 9 can easily hook objects. By pulling the movable frame 74 to slide along the fixed rod 71 and making the linkage frame 75 drive the linkage rod 77 to slide in the inner side of the sliding groove 72, the movable frame 74 drives the electric hoist 2 to move, which can achieve the purpose of facilitating the change of the height of the electric hoist 2 from the ground, thereby reducing the operation time of the electric hoist 2 and improving the work efficiency of the workers.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric single-beam crane, comprising a support column (1) and an electric hoist (2), characterized in that: The upper end of the support column (1) is provided with an adjustment mechanism (7), and the adjustment mechanism (7) includes a fixed rod (71) fixedly provided at the upper end of the support column (1), a sliding groove (72) is provided at the front end of the fixed rod (71), a limiting hole (73) is provided at the side of the front end of the fixed rod (71) close to the sliding groove (72), a movable frame (74) is slidably provided on the outer side of the fixed rod (71), and a linkage frame is slidably provided on the outer side of the fixed rod (71) close to the upper side of the movable frame (74). (75), a connecting rod (76) is fixedly provided at the upper end of the movable frame (74), a connecting rod (77) is slidably provided on the inner side of the sliding groove (72), a limiting rod (78) is movably provided on the inner side of the limiting hole (73), a limiting frame (79) is fixedly provided at one end of the connecting rod (76), a threaded rod (710) is provided on the inner side of the limiting frame (79), and an inner threaded ring (711) is provided on the outer side of the threaded rod (710) near the rear side of the limiting frame (79); A knob (712) is fixedly provided at the front end of the threaded rod (710), and a limiting plate (713) is fixedly provided at the upper end of the fixing rod (71); A mounting rod (714) is fixedly provided at one end of the movable frame (74), and a connecting ring (715) is fixedly provided at one end of the mounting rod (714) away from the movable frame (74); The front end of the internal threaded ring (711) is movably connected to the rear end of the limiting frame (79), and the axis lines of the limiting rod (78), the threaded rod (710), and the knob (712) are located on a straight line; The connecting rod (76), the limiting rod (78), the limiting frame (79), the threaded rod (710), the internal threaded ring (711), and the knob (712) are each provided in two groups, and the movable frame (74) is U-shaped.

2. The electric single-girder crane according to claim 1, characterized in that: There are multiple groups of limiting holes (73), and the upper end of the connecting rod (76) is fixedly connected to the lower end of the linkage frame (75).

3. The electric single-girder crane according to claim 1, characterized in that: The connecting rod (77) passes through the interior of the connecting frame (75), and the connecting rod (77) and the connecting frame (75) are fixedly connected.

4. The electric single-girder crane according to claim 1, characterized in that: A support base (3) is fixedly provided at the lower end of the support column (1), and a fixing groove (4) is provided at the upper end of the support base (3) close to the front side of the support column (1).

5. The electric single-girder crane according to claim 4, characterized in that: A supporting cross bar (5) is fixedly provided at one end of the movable frame (74), a slide rail (6) is fixedly provided at the lower end of the supporting cross bar (5), and a sliding frame (8) is slidably provided on the outer side of the slide rail (6).

6. The electric single-girder crane according to claim 5, characterized in that: The electric hoist (2) is installed at the lower end of the sliding frame (8), and a hook (9) is fixedly provided at the lower end of the sliding frame (8). There are two groups of the fixing grooves (4), and the shape of the slide rail (6) is T-shaped.

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