Hook fixed block
Technical field
The utility model relates to a kind of advancing drum back rack, especially a kind of hook fixed block.
Background technique
Existing advancing drum back rack is equipped with for clamp hook mounting fixture, this mounting fixture is all generally one-body molded, and clamps hook by elasticity itself, and this mounting fixture is easily tired, and clamping stability is poor, and working life is short.
Summary of the invention
The technical problems to be solved in the utility model is to provide the simple and hook fixed block that stability is strong of a kind of structure.
In order to solve the problems of the technologies described above, the utility model comprises fixed block for clamping drum hook of advancing and movable block, described fixed block and movable block one end hinged, the other end is by screw-fastening and adjustable, described screw rod is set with a spring, this spring is between fixed block and movable block.
Two mounting holes are formed bottom described fixed block.
The opposite side of described fixed block and movable block is formed with one and the groove rousing and link up with outer wall and match of advancing respectively up and down accordingly.
Described screw rod upper end is formed with the back-up ring for being pressed in movable block upper end, and this back-up ring top is provided with the square being convenient to screw screw rod.
The beneficial effects of the utility model are: hook fixed block of the present utility model adopts the split-type structural of fixed block and movable block, by fixed block and movable block one end hinged, the other end adopts screw rod adjustable ground to be installed together, the stability of its clamping is strong, effective, and this hook fixed block long service life.
Accompanying drawing explanation
Fig. 1 is the plan view of the utility model hook fixed block;
Fig. 2 is the side view of the utility model hook fixed block;
Fig. 3 is the worm's eye view of the utility model hook fixed block.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
See Fig. 1 to Fig. 3, hook fixed block of the present utility model comprises for clamping the fixed block 1 and movable block 2 of advancing and rousing hook, described fixed block 1 and movable block 2 one end hinged, the other end is tightened up by screw rod 3 and adjustable, described screw rod 3 is set with a spring 4, this spring 4 is between fixed block 1 and movable block 2.Wherein, the effect of spring 4 is when linking up with fixed block and needing to open, and is convenient to movable block 2 and departs from fixed block 1 rapidly.
Two mounting holes 11 are formed bottom described fixed block 1.By coordinating of mounting hole 11 and bolt, fixed block 1 can be fixed on advancing drum back frame plate.
The opposite side of described fixed block 1 and movable block 2 is formed with one and the groove rousing and link up with outer wall and match of advancing respectively up and down accordingly.The design of groove is convenient to advance and is roused the clamping of hook.
Described screw rod 3 upper end is formed with the back-up ring for being pressed in movable block 2 upper end, and this back-up ring top is provided with the square 31 being convenient to screw screw rod 3.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but these embodiments are included within scope of the present utility model.