CN201180880Y - Pneumatic ring locking quick connector - Google Patents

Abstract

An annularly solid pneumatic locking quick connector comprises a cylinder body; an inverted press-grip sac is arranged inside the cylinder body; a corrugated rubber insulation sac, an annular piston and a return spring are arranged inside the corrugated rubber insulation sac from bottom to top; the upper end of the rubber insulation sac is connected with the annular piston; a gas path is arranged on the cylinder body; an inlet of the gas path is communicated with the lower port of the cylinder body; an outlet thereof is communicated with the rubber sac; an aqueduct joint is connected to the lower port of the cylinder body (1); a gas communicating vessel is arranged inside the aqueduct joint; and an outlet of the gas communicating vessel is communicated with the gas path. The quick connector has the advantages of quick connection, convenient operation, tight and solid connection, high water filling efficiency and prevention of water resource waste. In addition, the quick connector can reduce the labor intensity of water filling operators.

Description

Air ring is locked quick connector admittedly

Technical field

The utility model relates to a kind of air ring and locks quick connector admittedly.

Background technique

At present, when China railways adds water for the passenger vehicle water tank, be to utilize sebific duct to be connected to tapered water nozzle on the train at bus stop, open water supply valve then and go up water; Last water finishes, and last water person closes water supply valve, again by the artificial aqueduct down of dialling.This problem that goes up the existence of water method is: 1, sebific duct and tapered water nozzle connect trouble, are difficult to accomplish to connect firmly; 2, connect and manage-the mouth separation process, last water person's labor intensity is big, and inefficiency is difficult to fill up water in the limited time.In the patent No. is to provide a kind of " rapid pipe joint of passenger train water inlet " in " ZL200620097772.2 ", it is by housing, the aqueduct joint that is located at the pressure bladder in the housing and is communicated with it, pressure bladder is fixed in the cavity of housing, enclosed space between this pressure bladder and the inner walls is the hydrodynamic pressure storehouse, and the hydrodynamic pressure storehouse is provided with the fluid access way.During the water filling operation, last water person achieves a butt joint the pressure bladder and the train water injecting pipe joint of this joint, controls fluid then and enters the hydrodynamic pressure storehouse from the fluid access way, makes pressure bladder hug the water injecting pipe outer wall, opens water supply valve then and gives the train water filling.Water supply finishes, and the fluid that last water person needs only the hydrodynamic pressure storehouse overflows from the fluid access way, makes pressure reduction in the hydrodynamic pressure storehouse, and this rapid pipe joint just can break away from train water injecting pipe joint automatically.Because the train bus stop time is short, almost go up simultaneously water in the of short duration time, will for the more piece railway carriage, cause pneumatic source pressure to fall, make between the rapid pipe joint that connected and the water injecting pipe joint and come off, both wasted water resources, influence adds water efficient again, is difficult to give every joint railway carriage topped up with water.

Summary of the invention

The purpose of this utility model is to solve the problems referred to above that prior art exists, provide a kind of connections quick, easy to operate, connect fastening, last water efficient height, the water resources of avoiding waste, the air ring of water person's labor intensity is locked quick connector admittedly on alleviating.

The utility model is achieved in that it has a cylinder body 1, its special way is: be provided with the pneumatic pressure of inverted cone and hold capsule 2 in cylinder body 1, in holding capsule 2, pneumatic pressure is respectively equipped with corrugated rubber from the bottom to top every capsule 3, annular piston 4 and return spring 5, rubber is connected with annular piston 4 every capsule 3 upper ends, on cylinder body 1, be provided with gas channel 7, gas channel 7 imports communicate with cylinder body 2 end openings, outlet communicates every capsule 3 with rubber, be connected with aqueduct joint 9 at cylinder body 1 end opening, be provided with gas communication device 8 in aqueduct joint 9,8 outlets of gas communication device communicate with gas channel 7.

The utility model has the advantages that: connect quick, easy to operate, connect fasteningly, last water efficient height can prevent the waste of water resources, water person's labor intensity on alleviating.Fall because of pressure moment carefully appears in pipeline at pneumatic source of the gas, pneumatic pressure is held the capsule outer wall can only have very little diameter to increase, finally shore on the annular piston inner peripheral surface, thereby limited pneumatic pressure to hold the excessive return of capsule and realized the effect of moment locking, prevented to come off because of pneumatic bleed pressure falls to make between the external equipment joint that connected and this fast Quick connecting joint.When pneumatic source of the gas stops to carry, annular piston is returning quickly under the return spring effect, because it still is vacuum state at short notice that the outer wall of peripheral hardware coupling head and pneumatic pressure are held between capsule inner wall, the hysteresis of this short time is that the reliable return of piston creates conditions, after pneumatic pressure was held the capsule return, the peripheral hardware coupling head was held capsule with pneumatic pressure and is fully separated and throw off.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that this air ring is locked the quick connector working state schematic representation admittedly.

Among the figure: cylinder body 1, pneumatic pressure is held capsule 2, and rubber is every capsule 3, annular piston 4, return spring 5, external equipment connecting head 6, gas channel 7, gas communication device 8, aqueduct joint 9.

Embodiment

As shown in Figure 1, this air ring is locked quick connector admittedly a cylinder body 1, be provided with the pneumatic pressure of inverted cone and hold capsule 2 in cylinder body 1, be respectively equipped with corrugated rubber from the bottom to top every capsule 3, annular piston 4 and return spring 5 in pneumatic pressure is held capsule 2, rubber is connected with annular piston 4 every capsule 3 upper ends.On cylinder body 2, be provided with gas channel 7, gas channel 7 imports communicate with cylinder body 1 end opening, outlet communicates every capsule 3 with rubber, be connected with aqueduct joint 9 at cylinder body 1 end opening, be provided with gas communication device 8 in aqueduct joint 9,8 outlets of gas communication device are connected with gas channel 7.

During connection, in cylinder body 1 insertion external equipment suitable for reading coupling head 6, aqueduct joint 9 is communicated with the train upper water box, and 8 imports of gas communication device are connected with pneumatic source of the gas.After opening source of the gas, gas flows into rubber and form pressure chamber in capsule 3, promoting annular piston 4 moves upward, under the effect of the pressure in pressure chamber, rubber is overlayed in pneumatic pressure every capsule 3 hold on capsule 2 outer walls, pneumatic pressure is held capsule 2 be compacted to sealing state and be grasped in securely in the external equipment coupling head 6, at this moment, air pressure also pushes up annular piston 4 to top, and with less clearance (pneumatic pressure is held capsule 2 outer walls and piston annular 4 inner peripheral surfaces) return spring 5 is compressed.Fall because of pressure moment carefully appears in pipeline at pneumatic source of the gas, pneumatic pressure is held capsule 2 outer walls can only have very little diameter to increase, finally shore on piston annular 4 inner peripheral surfaces, thereby limited pneumatic pressure to hold the excessive return of capsule 2 and realized the effect of moment locking, prevented to come off because of pneumatic bleed pressure falls to make between the external equipment joint 6 that connected and this quick connector.When pneumatic source of the gas stops to carry, annular piston 4 is returning quickly under return spring 5 effects, because it still is vacuum state at short notice that peripheral hardware coupling head 6 and pneumatic pressure are held between the capsule 2, the hysteresis of this short time is that annular piston 4 reliable returns create conditions, after pneumatic pressure was held capsule 2 returns, peripheral hardware coupling head 6 was held capsule 2 with pneumatic pressure and is fully separated and throw off.

Above-mentioned pneumatic source of the gas also can adopt fluid pressure source, and corresponding gas channel 7 can be the fluid passage, gas communication device 8 is the fluid connecting vessels.

Claims (1)

1, a kind of air ring is locked quick connector admittedly, comprise cylinder body (1), it is characterized in that: in cylinder body (1), be provided with the pneumatic pressure of inverted cone and hold capsule (2), in holding capsule (2), pneumatic pressure is respectively equipped with corrugated rubber from the bottom to top every capsule (3), annular piston (4) and return spring (5), rubber is connected with annular piston (4) every capsule (3) upper end, on cylinder body (1), be provided with gas channel (7), gas channel (7) import communicates with cylinder body (1) end opening, outlet communicates every capsule (3) with rubber, be connected with aqueduct joint (9) at cylinder body (1) end opening, be provided with gas communication device (8) in aqueduct joint (9), gas communication device (8) outlet communicates with gas channel (7).

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