CN209041004U - A kind of gasoline filter using energy-saving safe - Google Patents

Abstract

A kind of gasoline filter using energy-saving safe, including shell, filter core (2), the filter core (2) is arranged in housing cavity, fuel dispensing outlet (12) are provided at the top of the shell, the bottom of the shell is provided with the gasoline inlet (14) being connected with filter core (2) inner cavity, the fuel dispensing outlet (12) is connected with the annular cavity (11) that filter core outer peripheral surface and inner walls are formed, it is characterized by: being provided with the relief valve that can automatically turn on pressure release when the pressure of annular cavity (11) is greater than 5kg on the top of the shell, when relief valve is opened, the oil inlet (31) of relief valve is connected with annular cavity (11), and the oil outlet of the relief valve passes through filter core inner cavity by pipeline and extends from the bottom of shell and be connected with the oil storage tank outside shell.Utility model has the advantages that part of gasoline flows back into refluxing opening along conduit from oil outlet when pressure is excessive in annular cavity, the pressure in housing cavity reduces, it is ensured that using safe；Gasoline after reflux can reuse, fuel-efficient environmental protection.

Description

A kind of gasoline filter using energy-saving safe

Technical field

The utility model relates to a kind of gasoline filter manufacturing technology, especially a kind of gasoline filterings using energy-saving safe Device.

Background technique

Application No. is the China of CN201721152219.9 entitled " built-in relief valve oil filter " is real for existing one kind A kind of built-in relief valve oil filter is disclosed with new patent, is characterized in that: including machine oil filter tank, the oil strainer Tank be equipped with filter block, between the filter block and machine oil filter tank be equipped with machine oil filter core, the filter block be equipped with channel, the channel with Pressure relief device is equipped between filter block, the pressure relief device includes valve seat, relief valve and spring, and the valve seat is equipped with for pacifying The pressure-releasing chamber of relief valve is filled, the bottom of the pressure-releasing chamber is connected to machine oil filter core, one end of the spring and the top of pressure-releasing chamber Connection, the other end are connect with relief valve, and the valve seat is equipped with oil-through-hole, and one end of the oil-through-hole is connected to channel, another End be connected to pressure-releasing chamber, solution oil filter hypertonia cause sealing ring break through influence start magic number case lubrication.However, Relief valve is not connected directly with machine oil filter tank in the oil filter, needs to be mounted on the mistake realized on specific shell to machine oil Filter and pressure release, automobile engine oil intake are much smaller than gasoline circulation, which can not apply in gasoline filtering field, because The structure of this oil filter also needs to be further improved.

Summary of the invention

Technical problem to be solved in the utility model is provided a kind of using safe for above-mentioned state of the art Energy-efficient gasoline filter, this gasoline filter can effectively prevent gasoline knot carbon, reduce gasoline waste, pressure release effect it is good, use Safety, the long advantage of filter application life.

Technical solution adopted by the utility model to solve the above technical problems is as follows: this uses the gasoline filtering of energy-saving safe Device, including shell, filter core, the filter core are arranged in housing cavity, and fuel dispensing outlet, the shell are provided at the top of the shell The bottom of body is provided with the gasoline inlet being connected with filter core inner cavity, the fuel dispensing outlet and filter core outer peripheral surface and inner walls shape At annular cavity be connected, it is characterised in that: be provided on the top of the shell when annular cavity pressure be greater than 5kg When can automatically turn on the relief valve of pressure release, when relief valve is opened, the oil inlet of relief valve is connected with annular cavity, and described The oil outlet of relief valve is extended across filter core inner cavity from the bottom of shell by pipeline to be connected with the oil storage tank outside shell.

As an improvement, the relief valve includes valve seat, elastic piece and valve deck, the elastic piece includes that can contact in oil outlet On diaphragm seal and with diaphragm seal be tightly connected sealing ring, and the valve seat be connected with valve deck by sealing ring clamp consolidate Fixed, the body cavity between elastic piece and valve deck forms upper cavity, and the body cavity between elastic piece and valve seat forms cavity of resorption Body, the lower chamber are connected through oil inlet with annular cavity, and the upper cavity is not attached to lead to lower chamber, in the upper cavity It is provided with holddown spring, one end of the holddown spring contacts at the top of valve deck, and the other end of the holddown spring contacts On diaphragm seal, the elastic force of the holddown spring is 5kg.

It is further improved, diaphragm seal recess portion, the diaphragm seal recess portion is preferably provided on the bottom surface of the diaphragm seal In set the fixed rubber sheet gasket for being improved oil outlet sealing performance.

Be further improved, be preferably provided with valve seat cavity at the middle part of the valve seat, the bottom surface of the valve seat cavity to On be convexly equipped with pressure release protrusion and it is downwardly convex be equipped with pressure release pillar, it is logical that pressure release is provided through in pressure release protrusion and pressure release pillar Hole, the oil outlet are the top end opening of pressure release through-hole, and the rubber sheet gasket contacts on the top end opening of pressure release through-hole.

It is further improved, the bottom of the pressure release pillar is preferably connected with the sealing of the top of filter core, and the pressure release is logical Kong Nengyu filter core inner cavity is connected, and the bottom end opening of the pressure release through-hole is passed through across the conduit of filter core inner cavity and the refluxing opening of shell It is connected, the upper end of the conduit is connected with the sealing of pressure release through-hole, and the lower end of the conduit seals phase with the refluxing opening of shell Connection.

Be further improved, the upper end of the conduit seals the specific structure being connected with pressure release through-hole and is, with filter core top It is provided with sealing recess portion on the pressure release pillar that portion is connected, is nested with the rubber pad for being improved sealing performance on the sealing recess portion Circle, the upper end opening of conduit are nested on the corresponding pressure release pillar outer wall of rubber washer, are inserted in Postductal pressure release pillar and are planted It seals and is connected in the top opening of filter core.

It is further improved, the specific structure that the lower end of the conduit is connected with the sealing of the refluxing opening of shell is, described to lead The lower end of pipe contacts on refluxing opening, position limiting convex ring is provided in corresponding housing bottom surface around the refluxing opening, in duct wall Filled with sealing cock body in the position limiting convex ring inner cavity of surrounding, refluxing opening and filter core inner cavity are isolated by the sealing cock body.

As an improvement, the top of the diaphragm seal is preferably provided with connection pillar, the sealing ring is nested with convex in connection On column, positioning cap, washer and nut cap are also equipped on the connection pillar, the sealing ring is fixedly clamped in positioning cap and sealing Between piece, the limiting groove for preventing holddown spring from moving left and right is provided at the top of the positioning cap, the washer, which contacts, to be limited On the bottom surface of position groove, the nut cap fixes on the end of connection pillar and is pressed on washer on sealing ring.

As an improvement, being preferably provided with pressure relief opening, the company of being provided on the pressure relief opening on valve deck corresponding with upper cavity Adapter tube, the pressure relief opening is connected with the inner cavity of connecting tube, the connecting tube and the reflux that can be connected to pressure relief opening with oil storage tank Pipe is connected.

As an improvement, the shell includes body and cap, body opening, the cap are provided at the top of the body Edge and body opening sealing welding together with, the fuel dispensing outlet is arranged on cap, is provided in the middle part of the cap Cap opening, the relief valve sealing are fixed in cap opening.

Compared with the prior art, the advantages of the utility model are: working as pressure in the inner cavity of gasoline filter is more than 5kg When, relief valve can automatically open, and the part of gasoline in filter can flow back into back fuel reserve tank or oil storage tank from oil outlet along conduit Or in oil conservator, the pressure in such filter box intracoelomic cavity will reduce automatically, not only ensure using safe, but also can keep away well Exempt from it is too many into the oil mass of cylinder and can not after-flame, and black smoke is discharged, not only wastes gasoline in this way, but also uncombusted gasoline is also It pollutes the environment, and also results in cylinder knot carbon, and reduce the running property and service life of cylinder；When in clear device housing cavity Pressure reduction to 5kg when, relief valve can be automatically closed, and realize the automatic adjustment of filter case chamber pressure；To guarantee Into the normal gasoline amount of cylinder, facilitate the full combustion of gasoline, to effectively extend the service life of engine, reaches The effect of fuel-efficient environmental protection；Heavier: the inner cavity of this relief valve is also provided with the pressure relief opening of energy pressure release, to ensure that relief valve Cause because sealing ring use for a long time is likely to occur the too fast oil outlet of pressure change in breakage or housing cavity and has little time pressure release Sealing ring tearing is detached from fixed position, at this time can be from the pressure relief opening of valve deck side along pipeline into the part of gasoline of relief valve It is flow to oil storage tank, avoids gasoline spill and leakage, to ensure that the safety in utilization of relief valve；Therefore, this filter is not only practical, but also Safety, is worthy of popularization.

Detailed description of the invention

Fig. 1 is the perspective view of the utility model embodiment；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the sectional view in Fig. 2 along line A-A；

Fig. 4 is that the structural exploded view after pipeline is removed in Fig. 1；

Fig. 5 is the structural exploded view of undecomposed part in Fig. 4；

Fig. 6 is the structural exploded view of undecomposed part in Fig. 5；

Fig. 7 is the structural exploded view of another angle of undecomposed part in Fig. 5；

Fig. 8 is the structural exploded view of undecomposed part in Fig. 6；

Fig. 9 is the enlarged drawing of the part I in Fig. 3；

Figure 10 is the structural exploded view for the filter core that the utility model embodiment uses；

Figure 11 is the schematic diagram that gasoline flows in Fig. 3；

Figure 12 is the schematic diagram that relief valve is in pressure release state in Figure 11；

Figure 13 is the enlarged drawing of the part II in Figure 12；

Figure 14 is the gasoline flow schematic diagram after sealing ring ruptures in Figure 13.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

As shown in figs. 1 to 14, the gasoline filter using energy-saving safe of the present embodiment, including shell, filter core 2, institute State filter core 2 to be arranged in housing cavity, be provided with fuel dispensing outlet 12 at the top of the shell, the bottom of the shell be provided with The gasoline inlet 14 that 2 inner cavity of filter core is connected, in the annular that the fuel dispensing outlet 12 is formed with filter core outer peripheral surface and inner walls Chamber 11 is connected, and can automatically turn on pressure release when the pressure of annular cavity 11 is greater than 5kg being provided on the top of the shell Relief valve, when relief valve is opened, the oil inlet 31 of relief valve is connected with annular cavity 11, and the relief valve is fuel-displaced Mouth is extended across filter core inner cavity from the bottom of shell by pipeline to be connected with the oil storage tank outside shell.The relief valve packet Include valve seat 3, elastic piece and valve deck 5, the elastic piece include that can contact diaphragm seal 6 on oil outlet and close with diaphragm seal 6 The sealing ring 61 of connection is sealed, the valve seat 3 is connected with valve deck 5 and sealing ring 61 is fixedly clamped, between elastic piece and valve deck 5 Body cavity form upper cavity 32, and body cavity between elastic piece and valve seat 3 forms lower chamber 33, the lower chamber 33 It is connected through oil inlet 31 with annular cavity 11, the upper cavity 32 is not attached to lead to lower chamber 33, sets in the upper cavity 32 It is equipped with holddown spring 51, one end of the holddown spring 51 contacts on the top of valve deck 5, the other end top of the holddown spring 51 On diaphragm seal 6, the elastic force of the holddown spring 51 is 5kg for touching.It is recessed that diaphragm seal is provided on the bottom surface of the diaphragm seal 6 Portion sets the fixed rubber sheet gasket 62 for being improved oil outlet sealing performance in the diaphragm seal recess portion.At the middle part of the valve seat 3 It is provided with valve seat cavity 34, the bottom surface of the valve seat cavity 34 is upward convex downwardly convex equipped with pressure release pillar equipped with pressure release protrusion 35 36, it is provided through pressure release through-hole 37 in pressure release protrusion 35 and pressure release pillar 36, the oil outlet is pressure release through-hole 37 Top end opening, the rubber sheet gasket 62 contact on the top end opening of pressure release through-hole 37.The bottom of the pressure release pillar 36 and filter The top sealing of core 2 is connected, and the pressure release through-hole 37 can be connected with filter core inner cavity, the bottom end opening of the pressure release through-hole 37 Through being connected across the conduit 22 of filter core inner cavity with the refluxing opening 13 of shell, the upper end of the conduit 22 and pressure release through-hole 37 are sealed It is connected, the lower end of the conduit 22 is connected with the sealing of the refluxing opening 13 of shell.The upper end of the conduit 22 and pressure release through-hole The specific structure that 37 sealings are connected is that sealing recess portion is provided on the pressure release pillar 36 being connected with cartridge top, described The rubber washer 38 for being improved sealing performance is nested on sealing recess portion, the upper end opening of conduit 22 is nested with corresponding in rubber washer 38 36 outer wall of pressure release pillar on, the pressure release pillar 36 after being inserted in conduit 22 be plugged in the top opening of filter core and seal be connected It connects.The lower end of the conduit 22 seals the specific structure being connected with the refluxing opening 13 of shell, the lower end top of the conduit 22 Touching is provided with position limiting convex ring in corresponding housing bottom surface around the refluxing opening 13, around 22 tube wall of conduit on refluxing opening 13 Position limiting convex ring inner cavity in filled with sealing cock body, refluxing opening 13 and filter core inner cavity be isolated by the sealing cock body.

The top of diaphragm seal 6 is provided with connection pillar 63, and the sealing ring 61 is nested on connection pillar 63, the connection Positioning cap 66, washer 64 and nut cap 65 are also equipped on pillar 63, the sealing ring 61 is fixedly clamped in positioning cap 66 and sealing Between piece 6, the top of the positioning cap 66 is provided with the limiting groove for preventing holddown spring 51 from moving left and right, and the washer 64 pushes up On the bottom surface of limiting groove, the nut cap 65 fixes on the end of connection pillar 63 and washer 64 is made to be pressed on sealing ring for touching On 61.It is provided with pressure relief opening 52 on valve deck 5 corresponding with upper cavity 32, connecting tube 53 is provided on the pressure relief opening 52, it is described Pressure relief opening 52 is connected with the inner cavity of connecting tube 53, the connecting tube 53 and the return pipe that can be connected to pressure relief opening 52 with oil storage tank 4 are connected.The shell includes body 1 and cap 15, and the top of the body 1 is provided with body opening 16, the cap 15 Edge and body be open together with 16 sealing weldings, the fuel dispensing outlet 12 is arranged on cap 15, in the cap 15 Portion is provided with cap opening 17, and the relief valve sealing is fixed in cap opening 17.Filter core 2 is the prior art, such as Figure 10 institute Show, is a kind of common filter cartridge construction, including upper cover 28, lower cover 27 and the filter paper being interposed between upper cover 28 and lower cover 27 25, the bracket 26 for being fixed with cylinder type is planted in the inner cavity that filter paper 25 surrounds, bracket 26 plays the work that support filter paper 25 is formed With.Limbers is distributed on bracket 26, gasoline to be filtered enters filter core inner cavity from lower cover 27, flows to filter paper 25 from bracket 26 and exist Filter core is left after filtering at filter paper 25, realizes the filter operation of gasoline, bracket 26 can also not used, be only interposed in filter paper Also the function of filter core is able to achieve between lid 28 and lower cover 27.

5kg refers to the elastic force of the comparable spring of 5kg object gravity under normal conditions.

It is equipped with protective case 7 on the outer wall of the pressure release pillar 36, protective case through-hole is distributed on the protective case 7 71, the gasoline in annular cavity 11 flows into oil inlet 31 by protective case through-hole 71.

It is provided with sealing bulge loop on the lower lid of filter core, annular protrusion is provided in housing bottom surface, the annular protrusion The annular groove that can be inserted into sealing bulge loop is provided on top surface, the lower cover of filter core seals and forms vapour between bulge loop and housing bottom surface The oil suction chamber 18 that oil enters.

Working principle: gasoline to be filtered enters filter core inner cavity and is filtered by filter paper later to the annular cavity outside filter core In, at this time if gasoline enter it is too fast, pressure is excessive in annular cavity, when pressure is more than 5kg in housing cavity, sealing ring by Pressure bounces, and the oil inlet of relief valve is connected with pressure release through-hole, and part of gasoline flows back into refluxing opening, shell along conduit from pressure release through-hole Pressure in intracoelomic cavity reduces, it is ensured that using safe.

Sealing ring use for a long time is likely to occur the too fast pressure release through-hole of rate of pressure change in breakage or housing cavity Elastic ring is caused to tear or be detached from fixed position not as good as pressure release, it at this time can be from valve deck side into the part of gasoline of relief valve Pressure relief opening is back to oil storage tank along pipeline, avoids gasoline spill and leakage.

Claims (10)

1. a kind of gasoline filter using energy-saving safe, including shell, filter core (2), the filter core (2) is arranged in housing cavity In, it is provided at the top of the shell fuel dispensing outlet (12), the bottom of the shell is provided with to be connected with filter core (2) inner cavity Gasoline inlet (14), the fuel dispensing outlet (12) are connected with the annular cavity (11) that filter core outer peripheral surface and inner walls are formed, It is characterized by: being let out being provided with to automatically turn on when the pressure of annular cavity (11) is greater than 5kg on the top of the shell The relief valve of pressure, when relief valve is opened, the oil inlet (31) of relief valve is connected with annular cavity (11), and the relief valve Oil outlet filter core inner cavity is passed through by pipeline extend from the bottom of shell and be connected with the oil storage tank outside shell.

2. gasoline filter according to claim 1, it is characterised in that: the relief valve includes valve seat (3), elastic piece with Valve deck (5), the elastic piece include the energy that can be contacted the diaphragm seal (6) on oil outlet and be tightly connected with diaphragm seal (6) The sealing ring (61) stirred up and down, the valve seat (3) are connected with valve deck (5) and sealing ring (61) are fixedly clamped, elastic piece Body cavity between valve deck (5) forms upper cavity (32), and the body cavity between elastic piece and valve seat (3) forms cavity of resorption Body (33), the lower chamber (33) are connected through oil inlet (31) with annular cavity (11), the upper cavity (32) and lower chamber (33) it is not attached to lead to, be provided with holddown spring (51) in the upper cavity (32), one end of the holddown spring (51) contacts The other end at the top of valve deck (5), the holddown spring (51) contacts on diaphragm seal (6), the bullet of the holddown spring (51) Power is 5kg.

3. gasoline filter according to claim 2, it is characterised in that: be provided on the bottom surface of the diaphragm seal (6) Diaphragm seal recess portion sets the fixed rubber sheet gasket (62) for being improved oil outlet sealing performance in the diaphragm seal recess portion.

4. gasoline filter according to claim 3, it is characterised in that: be provided with valve seat in the middle part of the valve seat (3) Cavity (34), the bottom surface of the valve seat cavity (34) are upward convex downwardly convex equipped with pressure release pillar equipped with pressure release protrusion (35) (36), pressure release through-hole (37) are provided through in pressure release protrusion (35) and pressure release pillar (36), the oil outlet is pressure release The top end opening of through-hole (37), the rubber sheet gasket (62) contact on the top end opening of pressure release through-hole (37).

5. gasoline filter according to claim 4, it is characterised in that: the bottom of the pressure release pillar (36) and filter core (2) top sealing is connected, and the pressure release through-hole (37) can be connected with filter core inner cavity, the bottom end of the pressure release through-hole (37) Opening is connected across the conduit (22) of filter core inner cavity with the refluxing opening (13) of shell, the upper end of the conduit (22) and pressure release Through-hole (37) sealing is connected, and the lower end of the conduit (22) is connected with the sealing of the refluxing opening (13) of shell.

6. gasoline filter according to claim 5, it is characterised in that: the upper end of the conduit (22) and pressure release through-hole (37) specific structure that sealing is connected is to be provided with sealing recess portion on the pressure release pillar (36) being connected with cartridge top, The rubber washer (38) for being improved sealing performance is nested on the sealing recess portion, the upper end opening of conduit (22) is nested in rubber pad It encloses on (38) corresponding pressure release pillar (36) outer wall, the pressure release pillar (36) after being inserted in conduit (22), which is plugged at the top of filter core, to be opened It seals and is connected on mouth.

7. gasoline filter according to claim 5, it is characterised in that: the lower end of the conduit (22) and the reflux of shell The specific structure that mouth (13) sealing is connected is that the lower end of the conduit (22) contacts on refluxing opening (13), in refluxing opening (13) it is provided with position limiting convex ring in corresponding housing bottom surface around, is filled in the position limiting convex ring inner cavity around conduit (22) tube wall There is sealing cock body, refluxing opening (13) is isolated by the sealing cock body with filter core inner cavity.

8. according to the gasoline filter any in claim 2 to 7, it is characterised in that: set at the top of the diaphragm seal (6) It is equipped with connection pillar (63), the sealing ring (61) is nested in connection pillar (63), is also nested on the connection pillar (63) Have positioning cap (66), washer (64) and nut cap (65), the sealing ring (61) are fixedly clamped in positioning cap (66) and diaphragm seal (6) Between, the limiting groove for preventing holddown spring (51) from moving left and right, the washer are provided at the top of the positioning cap (66) (64) it contacts on the bottom surface of limiting groove, the nut cap (65) fixes on the end of connection pillar (63) and makes washer (64) It is pressed on sealing ring (61).

9. according to the gasoline filter any in claim 2 to 7, it is characterised in that: valve corresponding with upper cavity (32) Lid (5) on be provided with pressure relief opening (52), be provided with connecting tube (53) on the pressure relief opening (52), the pressure relief opening (52) with connect Pipe (53) inner cavity be connected, the connecting tube (53) with pressure relief opening (52) can be connected with the return pipe (4) that oil storage tank is connected to It connects.

10. according to claim 1 to any gasoline filter in 7, it is characterised in that: the shell includes body (1) With cap (15), body opening (16) is provided at the top of the body (1), the edge and body of the cap (15) are open (16) together, the fuel dispensing outlet (12) is arranged on cap (15) sealing welding, is provided in the middle part of the cap (15) Cap is open (17), and the relief valve sealing is fixed in cap opening (17).