CN203130512U

CN203130512U - Combination valve for screw air compressor

Info

Publication number: CN203130512U
Application number: CN 201320086552
Authority: CN
Inventors: 何东; 王文革; 竺坤申; 夏先义
Original assignee: 何东
Current assignee: FENGHUA EAGURT MACHINERY MANUFACTURE CO., LTD.
Priority date: 2013-02-04
Filing date: 2013-02-04
Publication date: 2013-08-14
Anticipated expiration: 2023-02-04

Abstract

The utility model discloses a combination valve for a screw air compressor. The combination valve comprises a valve body, wherein an oil separation seat is arranged at the upper end of the valve body, a rotary filter is connected on the outer side of the oil separation seat, a flow guide pipe is connected at the bottom of an inner cavity of the oil separation seat, a cavity is formed between the inner wall of the oil separation seat and the outer wall of the flow guide pipe, and a gap communicated with the cavity is reserved between the upper end of the outer wall of the flow guide pipe and the upper end of the inner wall of the oil separation seat; a pressure valve sleeve is connected on the right side of the valve body, a piston with a groove is arranged in the pressure valve sleeve, a valve core with the outer end being propped against a valve port and the inner end connected with the inner wall of the groove of the piston through a flange is arranged on the left side of the piston, and a small spring, the bottom of which is in contact with that of the groove of the piston is arranged on the inner wall of the flange of the valve core; and a big spring with the bottom end being in contact with the left end of a pressure regulating screw is sleeved on the outer wall of the piston. The oil gas separation device is combined together with the gas storage and closing device, so that the leaking points during the manufacture can be reduced, the stability in use is enhanced, and the combination valve is simple in structure and convenient to use.

Description

A kind of screw-rod air compressor combination brake switch and proporting

Technical field

The utility model relates to a kind of combination brake switch and proporting, relates in particular to a kind of screw-rod air compressor combination brake switch and proporting.

Background technique

Screw-rod air compressor at first can be with compressed gas mixture filtering separation in the process of compression and generation gas, needs this moment two kinds of devices realize that a kind of is gas and oil separating plant, is about to oily gentle separation, and commonly used is filter cleaner at present; The 2nd, gas storage and the opening and closing device of the pressurized gas after separating.Above-mentioned two kinds of devices separate in the present technology, and such result causes constructional device to increase, and stability decreases is so this is a problem demanding prompt solution.

The model utility content

Technical problem to be solved in the utility model is, at above-mentioned defective, a kind of screw-rod air compressor combination brake switch and proporting that gas and oil separating plant and gas storage, opening and closing device are combined is provided, this combination brake switch and proporting can make the leak source in the manufacturing reduce, the stability of using increases, and it is simple in structure, easy to use.

For solving the problems of the technologies described above, a kind of screw-rod air compressor combination brake switch and proporting that the utility model provides, comprise that one has the valve body of fan-shaped chamber, import, outlet and inner chamber, described fan-shaped chamber is positioned at the import left side, described inner chamber right side is provided with valve port, this inner chamber between import and outlet, and and import, export and to be the vertical setting that communicates; Described valve body upper end is respectively equipped with seal ring one and seal ring two by the oil content seat that has been threaded between described oil content seat bottom and upside and the valve body; The described oil content seat outside is by the rotation filter cleaner that has been threaded, and is provided with seal ring three between described rotation filter cleaner and the oil content seat; Described oil content seat intracavity bottom leaves the gap by the honeycomb duct that has been threaded between described honeycomb duct outer wall upper end and the oil content seat inwall upper end; The described valve body right side pressure valve pocket that has been threaded, described pressure valve pocket right side inner thread is connected with a voltage regulation screw, and be provided with seal ring four between pressure valve pocket and the valve body, be provided with a cavity between described oil content seat inner chamber and the honeycomb duct outer wall, gap between the upper end of described cavity and described honeycomb duct outer wall upper end and the oil content seat inner chamber upper end communicates, and this cavity and oil return outlet communicate; Being provided with one in the described pressure valve pocket can horizontally slip and the inner piston that has groove along the pressure valve sleeving inner wall, described piston left side is provided with inconsistent with valve port, the inner spool that is connected by the groove inwall of flange and piston in an outer end, and described spool flange inner wall is provided with a bottom and the tactile little spring of described pistion recess bottom connection; Described piston outer wall is socketed with a bottom and the contacted big spring of described voltage regulation screw left end.

As the improvement of the utility model, also be provided with seal ring five between described pressure valve sleeving inner wall and the piston outer wall.

After adopting said structure, advantage of the present utility model is: after the compressed fuel-air mixture body that comes out from screw air compressor enters the rotation filter cleaner by import via fan-shaped chamber, the gap of the oil droplet of separating out between gravity effect lower edge honeycomb duct outer wall and oil content seat inwall flows to cavity, because cavity and oil return outlet communicate, oil droplet is back in the preprepared oil droplet trap after exporting through oil return; Simultaneously, clean compressed gas after filtering flows to the inner chamber two of valve body and then arrives valve port along the inner chamber one of honeycomb duct, when the pressure of pressurized gas acts on the power of spool greater than big spring, big spring compresses to the right, piston slides to the right along valve sleeving inner wall, and pressurized gas backs down spool from outlet and enters the gas holder of getting ready in advance simultaneously; Otherwise the power that acts on spool when big spring is during greater than pressurized gas, and spool seals valve port under the effect of big spring, prevent gas backstreaming; The effect of little spring is fine-tuning spool, makes it can seal valve port better under no atmospheric pressure state; Pass through manual tune voltage regulation screw, the pressure size that also can regulate outlet simultaneously.

Description of drawings

Shown in Figure 1 is front of the present utility model sectional structure chart.

Shown in Figure 2 is side of the present utility model sectional structure chart.

Wherein: 1, valve body; 2, fan-shaped chamber; 3, seal ring one; 4, oil content seat; 5, seal ring two; 6, cavity; 7, seal ring three; 8, rotation filter cleaner; 9, honeycomb duct; 10, pressure valve pocket; 11, voltage regulation screw; 12, big spring; 13, seal ring four; 14, seal ring five; 15, piston; 16, spool; 17, little spring; 18, oil return outlet; 19, outlet; 20, inner chamber one; 21, valve port; 22, import; 23, inner chamber two; 24, gap; 25, groove; 26, flange.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.

By among Fig. 1 as can be known, this screw-rod air compressor comprises that with combination brake switch and proporting one has the valve body 1 of fan-shaped chamber 2, import 22, outlet 19 and inner chamber 2 23, fan-shaped chamber 2 is positioned at import 22 upper left sides, be provided with valve port 21 on inner chamber 2 23 right sides, this inner chamber 2 23 is in import 22 and export between 19, and is the vertical setting that communicates with import 22, outlet 19; By the oil content seat 4 that has been threaded, be respectively equipped with seal ring one 3 and seal ring two 5 between these oil content seat 4 bottoms and upside and the valve body 1 in valve body 1 upper end; Rotate filter cleaner 8 in oil content seat 4 outsides by being threaded, and be provided with seal ring 37 between this rotation filter cleaner 8 and the oil content seat 4; By the honeycomb duct 9 that has an inner chamber 1 that is threaded, leave gap 24 between this honeycomb duct 9 outer walls upper end and the oil content seat 4 inwalls upper end at oil content seat 4 intracavity bottoms; The pressure valve pocket 10 that has been threaded on valve body 1 right side, pressure valve pocket 10 right side inner threads are connected with a voltage regulation screw 11, and are provided with seal ring 4 13 between pressure valve pocket 10 and the valve body 1; Be provided with cavity 6 between oil content seat 4 inwalls and honeycomb duct 9 outer walls, the upper end of this cavity 6 and gap 24 communicate, and cavity 6 also and oil return export 18 (see figure 2)s that communicate; Being provided with one in pressure valve pocket 10 can horizontally slip and the inner piston 15 that has groove 25 along pressure valve pocket 10 inwalls, also is provided with seal ring 5 14 between pressure valve pocket 10 inwalls and piston 15 outer walls; Be provided with an outer end and valve port 21 inconsistent, the inner spools 16 that are connected with groove 25 inwalls by flange 26 in piston 15 left sides, be provided with the little spring 17 that a bottom and groove 25 bottom connections touch at flange 26 inwalls of spool 16; Be socketed with a bottom and the contacted big spring 12 of voltage regulation screw 11 left ends at piston 15 outer walls.

In the utility model, after the compressed fuel-air mixture body that comes out from screw air compressor enters rotation filter cleaner 8 by import 22 via fan-shaped chamber 2, the gap 24 of the oil droplet of separating out between gravity effect lower edge honeycomb duct 9 outer walls and oil content seat 4 inwalls flows to cavity 6, because cavity 6 and oil return outlet 18 communicate, oil droplet is back in the preprepared oil droplet trap after exporting 18 through oil return; Simultaneously, clean compressed gas after filtering flows to the inner chamber 2 23 of valve body 1 and then arrives valve port 21 along the inner chamber 1 of honeycomb duct 9, when the pressure of pressurized gas acts on the power of spool 16 greater than big spring 12, big spring 12 compresses to the right, piston 15 slides to the right along pressure valve pocket 10 inwalls, and pressurized gas backs down spool 16 from exporting 19 and enters the gas holder of getting ready in advance simultaneously; Otherwise the power that acts on spool 16 when big spring 12 is during greater than pressurized gas, and spool 16 seals valve port 21 under the effect of big spring 12, prevent gas backstreaming; The effect of little spring 17 is fine-tuning spools 16, makes it can seal valve port 21 better under no atmospheric pressure state; Pass through manual tune voltage regulation screw 11, the pressure size that also can regulate outlet simultaneously.

The direction that the direction that the arrow direction enters for the fuel-air mixture body among the figure and clean compressed gas are gone out.

The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.

Claims

1. screw-rod air compressor combination brake switch and proporting, comprise that one has the valve body of oil outlet, fan-shaped chamber, import, outlet and inner chamber, described fan-shaped chamber is positioned at the import left side, described inner chamber right side is provided with valve port, this inner chamber between import and outlet, and and import, export and to be the vertical setting that communicates; Described valve body upper end is respectively equipped with seal ring one and seal ring two by the oil content seat that has been threaded between described oil content seat bottom and upside and the valve body; The described oil content seat outside is by the rotation filter cleaner that has been threaded, and is provided with seal ring three between described rotation filter cleaner and the oil content seat; Described oil content seat intracavity bottom leaves the gap by the honeycomb duct that has been threaded between described honeycomb duct outer wall upper end and the oil content seat inwall upper end; The described valve body right side pressure valve pocket that has been threaded, described pressure valve pocket right side inner thread is connected with a voltage regulation screw, and be provided with seal ring four between pressure valve pocket and the valve body, it is characterized in that, be provided with a cavity between described oil content seat inner chamber and the honeycomb duct outer wall, the upper end of described cavity and described gap communicate, and this cavity and oil return outlet communicates; Being provided with one in the described pressure valve pocket can horizontally slip and the inner piston that has groove along the pressure valve sleeving inner wall, described piston left side is provided with inconsistent with valve port, the inner spool that is connected by the groove inwall of flange and piston in an outer end, and described spool flange inner wall is provided with a bottom and the tactile little spring of described pistion recess bottom connection; Described piston outer wall is socketed with a bottom and the contacted big spring of described voltage regulation screw left end.

2. a kind of screw-rod air compressor combination brake switch and proporting according to claim 1 is characterized in that, also is provided with seal ring five between described pressure valve sleeving inner wall and the piston outer wall.