CN201025166Y

CN201025166Y - Evaporation pressure adjuster

Info

Publication number: CN201025166Y
Application number: CNU2007200373271U
Authority: CN
Inventors: 赵旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-29
Filing date: 2007-04-29
Publication date: 2008-02-20
Anticipated expiration: 2017-04-29

Abstract

The utility model relates to a switch device, in particular to a vaporizing booster with pressure regulation function, which transforms the liquid fuel into the engine useable gas fuel. The utility model adopts the technical proposals that: contains a vaporizing booster which is characterized in that: a capacity is positioned between the valve cover and a valve core, which has a pressure regulating device containing a membrane; the membrane isolates the capacity into two spaces; the space near the valve core is a press capacity; the other space has a built in spring which is clamped between the valve cover and the membrane; the membrane is connected to a connection bar, and one end of the connection bar is fixed on the membrane while the other end pierces the valve core; and the top of the connecting bar has a piston component. By adopting the proposal, the utility model overcomes the deficiency of the prior art, provides a vaporizing booster which has a reliable structure and a connecting bar type decompressing and pressure regulating structure with well sealing effect.

Description

Evaporation pressure regulator

Technical field

The utility model relates to and a kind of liquid fuel is converted to the conversion equipment of the vaporized fuel that motor can use, and especially it also has the evaporation pressure regulator of voltage regulation function.

Background technique

At present, on market and magazine, occur and the product of the evaporation pressure regulator reported a lot, its major function is that liquid fuel is converted to the vaporized fuel that motor can be used, and uses for motor.Though product both domestic and external is fairly perfect on function, but its volume ratio is bigger, mostly be to utilize lever principle to reduce pressure and pressure regulation on its decompression voltage regulation function particularly, it as the patent No. a kind of evaporation pressure regulator of 99205449.4, it controls the suction pressure of suction port by being linked between rocking arm and the rubber cushion, thereby realize the function of pressure regulation, its rocking arm is equivalent to a lever, one end and rubber cushion are connected, the other end cooperates with inlet hole, is provided with a hinged support with housing in the middle of it; It exists following some shortcomings the evaporation pressure regulator of this structure: 1, it is to utilize the principle of lever to realize pressure regulation, so functional lability in case the suction pressure of suction port strengthens, then just damages this structure easily; 2, next lever-type structure is not fine to the control effect of pressure, when cavity pressure is very big, need close suction port, and then the sealing effect of rocking arm at this moment and suction port can be undesirable.

The model utility content

The utility model overcomes the deficiency of present technology, and a kind of reliable in structure is provided, the novel evaporation pressure regulator of the linkage type decompression pressure adjusting structure of good sealing effect.

Realize above-mentioned purpose, the utility model adopts following technological scheme: a kind of evaporation pressure regulator, include valve body, be arranged on spool and the valve gap that becomes to be sealed and matched with valve body in the valve body, described spool is provided with the hot water circuit passage, it is characterized in that: be provided with a cavity between described valve gap and the spool, be provided with regulator in this cavity, this regulator includes diaphragm, this diaphragm is divided into two spaces to cavity, described space near spool one place is the pressure control chamber, is provided with pressure spring in another space, and this spring is conflicted between valve gap and diaphragm, connecting rod has been connected on the described diaphragm, this connecting rod one end is fixed on the diaphragm, and the other end passes spool, and its top is provided with a piston assembly, described spool is provided with the passage to pressure control chamber air feed, this passage one end is connected with air input joint, the other end and the conducting of pressure control chamber, and described piston assembly cooperates the conducting that constitutes passage and closes with passage.

The novel further setting of this use is: constitute a holding cavity between described air input joint and the spool, the piston assembly on described connecting rod top is arranged in this holding cavity, described connecting rod is interspersed to be arranged in the passage of spool, and with passage be Spielpassung, described gap location is a gas flow, close valve gap one side of described spool is conflicted and is provided with inner clip plate, the periphery of inner clip plate is fixed by dividing plate, described inner clip plate one side constitutes a side chamber wall in pressure control chamber, the another side of described inner clip plate cooperates with hot water circuit passage on the spool, and described connecting rod passes inner clip plate and spool successively; Air input joint one side that is positioned at of described valve core channel is close to spool and is provided with the air inlet head, this air inlet head cooperates the break-make gas that constitutes valve core channel with the piston assembly on connecting rod top, the termination that is fixed on the end on the diaphragm of described connecting rod is passed diaphragm and guide rod is installed, this guide rod is plugged in the pilot hole on the spring seat of valve gap, and guide rod also becomes piston motion to cooperate with the activity of diaphragm with pilot hole; Described valve gap is provided with a vacuum connect, space between this vacuum connect and diaphragm and the valve gap connects, the both sides of described diaphragm all are respectively arranged with the protection pallet, the protection pallet is close to diaphragm arrangement, and be linked with it, described hot water circuit passage is helically disposed on spool, and the outlet passageway on the valve gap that described and pressure control chamber are connected is provided with safety valve.

Beneficial effect: be provided with a cavity between described valve gap and the spool by adopting, be provided with regulator in this cavity, this regulator includes diaphragm, this diaphragm is divided into two spaces to cavity, described space near spool one place is the pressure control chamber, be provided with pressure spring in another space, this spring is conflicted between valve gap and diaphragm, connecting rod has been connected on the described diaphragm, this connecting rod one end is fixed on the diaphragm, the other end passes spool, and its top is provided with a piston assembly, and described spool is provided with the passage to pressure control chamber air feed, this passage one end is connected with air input joint, the other end and the conducting of pressure control chamber, described piston assembly cooperate the conducting that constitutes passage and close the structure of this Lever type principle with passage, make the work of this product more stable, particularly ought enter under the very big situation of the pressure of gas, lever-type regulator is not easy to damage, and during closing passage, good sealing effect.Because conflicting, close valve gap one side of described spool is provided with inner clip plate again, the periphery of inner clip plate is fixed by dividing plate, described inner clip plate one side constitutes a side chamber wall in pressure control chamber, the another side of described inner clip plate cooperates with hot water circuit passage on the spool, by inner clip plate can limiting diaphragm the springing position, guarantee the stability of diaphragm work; Air input joint one side that is positioned at of described valve core channel is close to spool and is provided with the air inlet head, and this air inlet head cooperates the break-make gas that constitutes valve core channel with the piston assembly on connecting rod top, then makes the air inlet size that piston assembly can better control channel; The termination that is fixed on the end on the diaphragm of described connecting rod is passed diaphragm and guide rod is installed, this guide rod is plugged in the pilot hole on the spring seat of valve gap, guide rod also becomes piston motion to cooperate with the activity of diaphragm with pilot hole, guarantee the path of connecting rod axial stretching, prolong the working life of product; Described valve gap is provided with a vacuum connect, and space between this vacuum connect and diaphragm and the valve gap connects, like this can be under certain conditions the flow of big or small auxiliary adjustment passage of negative pressure by the space between diaphragm and the valve gap, can save combustion gas; The both sides of described diaphragm all are respectively arranged with the protection pallet; the protection pallet is close to the setting of a film piece of writing, and is linked with it, can play the effect of protection diaphragm; outlet passageway on the valve gap that described and pressure control chamber are connected is provided with safety valve, increases security of products.

Below in conjunction with accompanying drawing model utility is further described.

Description of drawings

Fig. 1 is structural representation Fig. 1 of the utility model embodiment;

Fig. 2 is structural representation Fig. 2 of the utility model embodiment.

Embodiment

As depicted in figs. 1 and 2, a kind of evaporation pressure regulator, include valve body 1, be arranged on spool 2 and the valve gap 3 that is sealed and matched with 1 one-tenth of valve body in the valve body 1, described spool 2 is provided with hot water circuit passage 4, be provided with a cavity 5 between described valve gap 3 and the spool 2, be provided with regulator 6 in this cavity 5, this regulator 6 includes diaphragm 61, this diaphragm 61 is divided into two spaces 51 to cavity 5,52, described space 51 near spool 2 one places is pressure control chamber 51, be provided with pressure spring 62 in another space 52, this spring 62 is conflicted between valve gap 3 and diaphragm 61, connecting rod 63 has been connected on the described diaphragm 61, these connecting rod 63 1 ends are fixed on the diaphragm 61, the other end passes spool 2, and its top is provided with a piston assembly 64, described spool 2 is provided with the passage 21 to pressure control chamber 51 air feed, these passage 21 1 ends are connected with air input joint 7, the other end and 51 conductings of pressure control chamber, described piston assembly 64 cooperates the conducting that constitutes passage 21 and closes with passage 21, and the size of control channel 21 interior gas flows; In the utility model embodiment, utilize this structure can make the work of this product more stable, particularly ought enter under the very big situation of the pressure of gas, this lever-type regulator 6 is not easy to damage, and during closing passage, good sealing effect.

In the utility model embodiment, constitute a holding cavity 9 between described air input joint 7 and the spool 2, the piston assembly 64 on described connecting rod 63 tops is arranged in this holding cavity 9, described connecting rod 63 interspersed being arranged in the passage 21 of spool 2, and with passage 21 be Spielpassung, described gap location is a gas flow, certainly in the utility model is implemented, the passage 21 that connecting rod 63 passes spool 2 can not be same with the runner of gas yet, and connecting rod 63 was motive sealing with passage 21 and cooperated this moment.Close valve gap 3 one sides of described spool 2 are conflicted and are provided with inner clip plate 10, the periphery of inner clip plate 10 is fixing by dividing plate 11, described inner clip plate 10 1 sides 101 constitute a side chamber wall in pressure control chamber 51, the another side 102 of described inner clip plate 10 cooperates with hot water circuit passage 4 on the spool 2, described connecting rod 63 passes inner clip plate 10 and spool 2 successively, the effect of internal baffle 10 here is springing positions of limiting diaphragm 61, thus this internal baffle 10 we also can be directly and spool 2 be wholely set.

In the utility model embodiment, air input joint 7 one sides that are positioned at of described spool 2 passages 21 are close to spool 2 and are provided with air inlet 11, this air inlet 11 cooperates the break-make gas that constitutes spool 2 passages 21 with the piston assembly 64 on connecting rod 63 tops, its objective is to make the size that piston assembly 64 can better control channel 21 air inflows; The termination 631 that is fixed on the end on the diaphragm 61 of described connecting rod 63 is passed diaphragm 61 and guide rod 12 is installed, guide rod 12 also can be wholely set with the termination 631 of connecting rod 63, this guide rod 12 is plugged in the pilot hole 311 on the spring seat 31 of valve gap 3, guide rod 12 also cooperates with the activity of diaphragm 61 and 311 one-tenth piston motions of pilot hole, to guarantee the path of connecting rod 63 axial stretchings, prolong the working life of product, certainly we also can adopt other modes to reach this purpose, be provided with guide groove or guide hole as passing diaphragm 61 in the termination 631 that is fixed on the end on the diaphragm 61 of connecting rod 63, corresponding valve gap 3 is provided with guide rail or the guide rod that interts in guide groove or guide hole, this technology is not a main purpose of the present invention, so here we do not describe in detail yet.

In the utility model embodiment, described valve gap 3 is provided with a vacuum connect 32, space 52 between this vacuum connect 32 and diaphragm 61 and the valve gap 3 connects, like this can be under certain conditions the flow of big or small auxiliary adjustment passage 21 of negative pressure by the space 52 between control diaphragm 61 and the valve gap 3, can save combustion gas; The both sides of the diaphragm 61 that institute's book is stated all are respectively arranged with protection pallet 13; protection pallet 13 is close to diaphragm 61 and is provided with; and be linked with it; to play the effect of protection diaphragm 61; described hot water circuit passage 4 is helically disposed on spool 2, and the outlet passageway 33 on the valve gap 3 that described and pressure control chamber 51 are connected is provided with safety valve 8.

Claims

1. evaporation pressure regulator, include valve body, be arranged on spool and the valve gap that becomes to be sealed and matched with valve body in the valve body, described spool is provided with the hot water circuit passage, it is characterized in that: be provided with a cavity between described valve gap and the spool, be provided with regulator in this cavity, this regulator includes diaphragm, this diaphragm is divided into two spaces to cavity, described space near spool one place is the pressure control chamber, be provided with pressure spring in another space, this spring is conflicted between valve gap and diaphragm, the connecting rod that has been connected on the described diaphragm, and this connecting rod one end is fixed on the diaphragm, the other end passes spool, and its top is provided with a piston assembly, and described spool is provided with the passage to pressure control chamber air feed, and this passage one end is connected with air input joint, the other end and the conducting of pressure control chamber, described piston assembly cooperate the conducting that constitutes passage and close with passage.

2. evaporation pressure regulator according to claim 1, it is characterized in that: constitute a holding cavity between described air input joint and the spool, the piston assembly on described connecting rod top is arranged in this holding cavity, described connecting rod is interspersed to be arranged in the passage of spool, and with passage be Spielpassung, described gap location is a gas flow, close valve gap one side of described spool is conflicted and is provided with inner clip plate, the periphery of inner clip plate is fixed by dividing plate, described inner clip plate one side constitutes a side chamber wall in pressure control chamber, the another side of described inner clip plate cooperates with hot water circuit passage on the spool, and described connecting rod passes inner clip plate and spool successively.

3. evaporation pressure regulator according to claim 1 and 2, it is characterized in that: air input joint one side that is positioned at of described valve core channel is close to spool and is provided with the air inlet head, this air inlet head cooperates the break-make gas that constitutes valve core channel with the piston assembly on connecting rod top, the termination that is fixed on the end on the diaphragm of described connecting rod is passed diaphragm and guide rod is installed, this guide rod is plugged in the pilot hole on the spring seat of valve gap, and guide rod also becomes piston motion to cooperate with the activity of diaphragm with pilot hole.

4. evaporation pressure regulator according to claim 1 and 2, it is characterized in that: described valve gap is provided with a vacuum connect, space between this vacuum connect and diaphragm and the valve gap connects, the both sides of described diaphragm all are respectively arranged with the protection pallet, the protection pallet is close to diaphragm arrangement, and be linked with it, described hot water circuit passage is helically disposed on spool, and the outlet passageway on the valve gap that described and pressure control chamber are connected is provided with safety valve.

5. evaporation pressure regulator according to claim 3, it is characterized in that: described valve gap is provided with a vacuum connect, space between this vacuum connect and diaphragm and the valve gap connects, the both sides of described diaphragm all are respectively arranged with the protection pallet, the protection pallet is close to diaphragm arrangement, and be linked with it, described hot water circuit passage is helically disposed on spool, and the outlet passageway on the valve gap that described and pressure control chamber are connected is provided with safety valve.