The force-doubling type diaphragm cylinder
The utility model relates to a kind of force-doubling type diaphragm cylinder.
Diaphragm cylinder of the prior art all is a single-stage, the thrust of its output is subjected to the influence of factors such as source of the gas, volume and manufacturing process, want to increase thrust output, must increase bleed pressure on the one hand, also can increase the cylinder volume on the other hand, but bleed pressure and cylinder volume size are subjected to the restriction of use occasion, are difficult to fundamentally solve the little problem of single-stage diaphragm cylinder thrust output.
The purpose of this utility model is to design a kind of force-doubling type diaphragm cylinder, need not increase under the long-pending prerequisite of bleed pressure and cylinder block, superpose by multistage cylinder and to realize the stack of thrust output, fundamentally solved the little problem of single-stage diaphragm cylinder thrust output.
The utility model design proposal: a kind of force-doubling type diaphragm cylinder, comprise upper end cap (1) and lower end cap (2), the upper end of upper end cap (1) is shaped on ventilation mouth (3), the lower end is shaped on air chamber A, both sides are shaped on through hole (13), and ventilation mouth (3) connects with air chamber A, be provided with film piston (4) and stage clip (5) in the lower end cap (2), both sides are shaped on screw (14), be fixed with push rod (6) on the axis of film piston (4), seal by seal ring (7) between push rod (6) and the film piston (4), and push rod (6) stretches out the lower end surface of lower end cap (2), between upper end cap (1) and lower end cap (2), be provided with N cylinder body (8), N is an integer, the upper end of each cylinder body (8) is provided with film piston (4), the lower end all is shaped on air chamber B, all be fixed with push rod (6) on the axis of each film piston (4), all push rods (6) end-to-end, be positioned on each push rod (6) of cylinder body (8) and all be shaped on built-in vent (9), and built-in vent (9) head and the tail communicate air chamber A, B connects, push rod (6) passes the position of cylinder body (8) by seal ring (10) sealing, between cylinder body (8) and the upper end cap (1), all seal upper end cap (1) between two cylinder bodies (8) and between cylinder body (8) and the lower end cap (2) by seal ring (11) (12), cylinder body (8) and lower end cap (2) are fixed as one.
Each cylinder body all is shaped on exhaust port on (8), and exhaust port is positioned at the below of film piston (4).The both sides of each cylinder body (8) all are shaped on through hole (13), screw rod (15) passes through hole (13) spinning of upper end cap (1), cylinder body (8) both sides successively on the screw (14) of lower end cap (3) both sides, and upper end cap (1), cylinder body (8) and lower end cap (3) are fixed as one.
The utility model is compact structure compared with prior art, novel in design, need not increase under the long-pending prerequisite of bleed pressure and cylinder block, superpose by multistage cylinder and realized the stack of thrust output, fundamentally solve the little problem of single-stage diaphragm cylinder thrust output.
Fig. 1 is first kind of structure sectional view of the utility model,
Fig. 2 is second kind of structure sectional view of the utility model.
1 first kind of embodiment of the present utility model described in conjunction with the accompanying drawings.
A kind of force-doubling type diaphragm cylinder, comprise upper end cap (1) and lower end cap (2), the upper end of upper end cap (1) is shaped on ventilation mouth (3), the lower end is shaped on air chamber A, both sides are shaped on through hole (13), and ventilation mouth (3) connects with air chamber A, be provided with film piston (4) and stage clip (5) in the lower end cap (2), both sides are shaped on screw (14), be fixed with push rod (6) on the axis of film piston (4), seal by seal ring (7) between push rod (6) and the film piston (4), and push rod (6) stretches out the lower end surface of lower end cap (2), between upper end cap (1) and lower end cap (2), be provided with 1 cylinder body (8), the upper end of cylinder body (8) is provided with film piston (4), the lower end is shaped on air chamber B, be fixed with push rod (6) on the axis of film piston (4), push rod (6) end-to-end, be positioned on the push rod (6) of cylinder body (8) and be shaped on built-in vent (9), and built-in vent (9) is with air chamber A, B connects, push rod (6) passes the position of cylinder body (8) by seal ring (10) sealing, all seal upper end cap (1) between cylinder body (8) and the upper end cap (1) and between cylinder body (8) and the lower end cap (2) by seal ring (11) (12), cylinder body (8) and lower end cap (2) are fixed as one.
Cylinder body is shaped on exhaust port on (8), and exhaust port is positioned at the below of film piston (4).The both sides of cylinder body (8) are shaped on through hole (13), screw rod (15) passes through hole (13) spinning of upper end cap (1), cylinder body (8) both sides successively on the screw (14) of lower end cap (3) both sides, and upper end cap (1), cylinder body (8) and lower end cap (3) are fixed as one.
Working principle: source of the gas makes pressurized gas enter air chamber A by the ventilation mouth (3) on the upper end cap (1), make pressurized gas enter air chamber B by the built-in vent (9) on the push rod (6) again, air chamber B is obtained and the same pressure of air chamber A, two Room air pressure actings in conjunction make push rod (6) obtain double thrust on push rod (6).
2 second kind of embodiment of the present utility model described in conjunction with the accompanying drawings.Basic structure is identical with embodiment one with working principle, difference is to be provided with 3 cylinder bodies (8) between upper end cap (1) and the lower end cap (2), the upper end of each cylinder body (8) is provided with film piston (4), the lower end all is shaped on air chamber B, all be shaped on exhaust port on the sidewall, and exhaust port is positioned at the below of film piston (4), all be fixed with push rod (6) on the axis of each film piston (4), all push rods (6) end-to-end is positioned at and all is shaped on the built-in vent (9) that head and the tail communicate on three push rods (6) of cylinder body (8) air chamber A, B are connected.Pressurized gas enters three air chamber B by the built-in vent (9) on the push rod (6) when entering air chamber A, air chamber B is obtained and the same pressure of air chamber A, and four Room air pressure actings in conjunction make push rod (6) obtain four times thrust on push rod (6).