CN209687695U - A kind of diaphragm gasoline pump - Google Patents
A kind of diaphragm gasoline pump Download PDFInfo
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- CN209687695U CN209687695U CN201920194664.4U CN201920194664U CN209687695U CN 209687695 U CN209687695 U CN 209687695U CN 201920194664 U CN201920194664 U CN 201920194664U CN 209687695 U CN209687695 U CN 209687695U
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- diaphragm
- pump housing
- pump
- damper cap
- oil
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Abstract
The utility model discloses a kind of diaphragm gasoline pump, including the pump housing, and the pump housing is equipped with damper cap, the top for having damper cap to be assemblied in the pump housing, is laid with multiple damping spring balls in the damper cap, and the lateral wall interval of the damping spring ball and the pump housing is arranged；The drawing device of pump drainage fuel oil is provided in the pump housing, the drawing device includes pumping rod, the pumping rod is equipped with double webbing members, double webbing members include the supporting plate of the fixed double-deck diaphragm, the double-deck diaphragm is respectively fixedly connected at the top and bottom of the supporting plate, flexible reinforcing rib is equipped in the diaphragm, pump oil is realized by above-mentioned component, effectively the vibration of the pump housing is conducted by damper cap disclosed by the utility model simultaneously, shock absorbing, effectively increases the service life of petrol pump by the way that double webbing members are arranged.
Description
Technical field
The utility model relates to mechanical gasoline pump more particularly to a kind of diaphragm gasoline pumps.
Background technique
Petrol pump is divided into electronics petrol pump and mechanical gasoline pump according to its working principle, according to the side of its pump drainage fuel oil
Formula can be divided into diaphragm type and turbofoil again, specific mechanical diaphragm petrol pump its rely primarily on the upper of engine components
Rocker arm on cam driven petrol pump drives piston rod to move back and forth using rocker arm, while piston rod band dynamic diaphragm changes gasoline
Space size in pump changes and pumps intracorporal pressure, and then realizes oil suction and oil extraction.
However, above-mentioned mechanical diaphragm petrol pump is different from electronics petrol pump, not only pump drainage fuel efficiency is high, and because of it
Driving force is external connection power source, not against electric power, it is not easy to break down.
But there are universal technical problems to be for mechanical diaphragm petrol pump, vibration is big, is moved by cam part conduction
Power, certainly will shake larger, and stronger shake is easy to damage the leakproofness of the pump housing such as pump housing.
Meanwhile the vibration amplitude of mechanical diaphragm petrol pump is related with the working speed of engine, revolving speed is bigger, the pump housing
Acting number increases in the internal diaphragm unit time, and the diaphragm of existing petrol pump uses single chip, in high load capacity work
Diaphragm is easy to damage during work, and the diaphragm flexibility after damage increases, and the efficiency of pump drainage fuel oil reduces.
Therefore the bottleneck for the technical issues of above-mentioned technical problem is always diaphragm mechanical diaphragm petrol pump designs one kind
It is most important that mechanical gasoline pump solves above-mentioned technical problem.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of diaphragm gasoline pumps.
The utility model is to solve above-mentioned technical problem by the following technical programs:
A kind of diaphragm gasoline pump, including the pump housing, the pump housing is communicated with oil inlet pipe, flowline and oil return pipe, described
Oil inlet pipe, flowline and oil return pipe are respectively arranged with oil inlet valve, fuel-displaced valve and oil return valve；
The pump housing is equipped with damper cap, and the top for having damper cap to be assemblied in the pump housing is laid in the damper cap more
The lateral wall interval of a damping spring ball, the damping spring ball and the pump housing is arranged；
The drawing device of pump drainage fuel oil is provided in the pump housing, the drawing device includes pumping rod, the pumping rod
Equipped with double webbing members；
Double webbing members include the supporting plate of the fixed double-deck diaphragm, and the top and bottom of the supporting plate are fixed respectively
Connected double-layer diaphragm, the diaphragm is interior to be equipped with flexible reinforcing rib；
The bottom of the pumping rod is equipped with rocker arm, and rocker arm is connected with cam, reset is provided on the body of rod of the pumping rod
Spring.
Working principle: diaphragm gasoline pump, including the pump housing, the main structure of the pump housing are machinery diaphragm disclosed in the prior art
The conventional structure of formula petrol pump.But mechanical diaphragm petrol pump disclosed in the prior art has the drawback that
One, diaphragm is more fragile, is easily deformed, and leads to the reduction of pump housing pump oil dynamics；
Two, when the pump housing works, vibration is big, can not damping.
In view of the above technical problems:
By single layer diaphragm disclosed in the prior art, it is arranged to the double-deck diaphragm structure, and flexible reinforce is set in diaphragm
Flexible support is played the role of in the effect of muscle, flexible reinforcing rib, diaphragm can not only be prevented to be broken, while can prevent from deforming.
The top position of the pump housing is arranged in damper cap, and by damper cap cushioning effect, the vibration of the pump housing is consumed.The pump housing
Vibration reduce after, in the pump housing pump drainage fuel oil drawing device (duplicature piece is assemblied on the pull rod of drawing device) linear motion
It is more steady, further protect the double-deck diaphragm structure during pull fuel oil, diaphragm is injury-free.
It is using the advantages of above-mentioned apparatus structure:
It solves in the prior art, the technical issues of diaphragm is easily deformed, is broken, increases the service life of petrol pump,
Meanwhile by the effect of damper cap, the vibration of the pump housing is passed through into the slow vibration of damping spring ball using conduct vibrations.Vibration subtracts
It is low, the stability of gasoline pump work is not only increased, while having ensured the stationarity of pump oil process.
Preferably, the lid of the damper cap is equipped with the pilot hole cooperated with the pump housing.
Preferably, the damping spring ball includes the small ball of alloy material, and the small ball passes through spring and damper cap
Inner wall connection, the lateral wall interval of the small ball and the pump housing is arranged.
Preferably, the body of rod of the pumping rod is equipped with the spring base cooperated with spring, and the end of spring one end is assemblied in
On spring base.
Preferably, the oil sealing of pumping rod cooperation is provided in the pump housing.
Preferably, the lower end of the oil inlet valve is provided with filter.
Preferably, the shape of the filter is arc.
Preferably, the damping spring ball is using the central axes of the pump housing as symmetrical centre, and is distributed on the inner sidewall of damper cap
6-10 damping spring ball is distributed in multilayer, each layer.
Preferably, two neighboring damping spring ball has 30 degree of angle on perpendicular and horizontal plane.
The utility model has the advantage that compared with prior art
The utility model discloses a kind of diaphragm gasoline pump, including the pump housing, and the pump housing is equipped with damper cap, described to have damping
Lid is assemblied in the top of the pump housing, is laid with multiple damping spring balls in the damper cap, the damping spring ball and the pump housing it is outer
Sidewall spacers setting；The drawing device of pump drainage fuel oil is provided in the pump housing, the drawing device includes pumping rod, the pumping
Pull rod is equipped with double webbing members, and double webbing members include the supporting plate of the fixed double-deck diaphragm, the top of the supporting plate and
Bottom is respectively fixedly connected with the double-deck diaphragm, and flexible reinforcing rib is equipped in the diaphragm, realizes pump oil by above-mentioned component, leads to simultaneously
Cross damper cap disclosed by the utility model effectively the vibration of the pump housing is conducted, shock absorbing, pass through and double webbing members be set
Effectively increase the service life of petrol pump.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram of double webbing members in the utility model embodiment；
Fig. 3 is the structural schematic diagram of damper cap in the utility model embodiment；
Fig. 4 is the structural schematic diagram of damper cap in the utility model embodiment.
Specific embodiment
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited
In following embodiments.
As shown in Figs 1-4, a kind of diaphragm gasoline pump, including the pump housing 1, specifically, the pump housing 1 is disclosed in the prior art
Conventional structure, those skilled in the art are by consulting technical manual you can learn that its internal structure and working principle.
Furthermore, the pump housing 1 is communicated with oil inlet pipe 101 (positioned at the top center of the pump housing 1), 102 (position of flowline
In the left sidewall position of the pump housing 1) and oil return pipe 104 (positioned at the top left side position of the pump housing 1), the 101 (connection of oil inlet pipe
In the top center of the pump housing 1), (connection is in the pump housing 1 for flowline 102 left side wall of the pump housing 1 (be connected to) and oil return pipe 104
Top left side) it is respectively arranged with oil inlet valve (not marking in figure), fuel-displaced valve (not marking in figure) and oil return valve 103,
Using oil inlet valve, fuel-displaced valve and oil return valve 103 control fuel oil into, row, pump drainage fuel oil is provided in the pump housing 1
Drawing device, using drawing device be pumped into fuel oil and discharge fuel oil.
Drawing device includes pumping rod 4, and the bottom of the pumping rod 4 is equipped with Rocker arm 5, and Rocker arm 5 is connected with cam, the pumping
Reset spring (not marking in figure) is provided on the body of rod of pull rod 4.(crankshaft is dynamic for the bent axle power output block of cam and engine
Retarder is additionally provided between power output block and cam) connection, equipped with Rocker arm 5, Rocker arm 5 is connected with convex for the bottom of pumping rod 4
It takes turns, is provided with reset spring (not marking in figure) on the body of rod of the pumping rod 4.Rocker arm 5, rocker arm are driven in cam rotation process
It is rotatablely connected between 5 and the pump housing 1 by pin shaft, the rotation of Rocker arm 5, pumping rod 4 is driven to move back and forth, pumping rod 4 drives double films
Chip part 3 moves back and forth.Double webbing members 3 change the inner cavity size of the pump housing 1 (when pumping rod 4 moves downward), inner cavity increases,
Fuel oil enters 1 inner cavity of the pump housing from oil inlet pipe 101, oil inlet valve, and when inner cavity is reduced (when pumping rod 4 moves upwards), fuel oil is from out
Oil valve door, flowline 102 are discharged, and the oil sealing (not marking in figure) of the cooperation of pumping rod 4 is provided in the pump housing 1, utilizes oil sealing
Carry out leakproof.
By the above-mentioned means, realizing 1 pump drainage fuel oil of the pump housing.
However, in the prior art, although fuel oil is passing through primary filtration into preceding in the pump housing 1, once external filtering
When parts damages (fuel oil has biggish oil pressure, is easily damaged the filtering chip part of sheet), fuel oil will carry insoluble matter impurity
Into in the pump housing 1, the pump housing 1 is damaged.
Therefore the pump housing 1 is blocked in order to prevent, in the filter 105 of the lower end of oil inlet valve setting arc, utilizes filter
105 are filtered, specifically: since the fuel oil entered in the pump housing 1 has certain oil pressure, and the 105 (main body of filter of arc
Structure is filter screen) there is biggish specific surface area, surface tension is big, and oil resistant presses impact strong.
The pump housing 1 disclosed in the prior art is arranged one on the pull rod of pull fuel oil using single diaphragm structure
Tunic piece realizes pull fuel oil using a tunic piece, and still, using above-mentioned single diaphragm structure, caused drawback is film
Piece is easy to damage deformation, and leakproofness reduces.
Therefore, in order to increase the intensity of diaphragm, double webbing members 3 are fixedly connected at the top of pumping rod 4, specifically,
Double webbing members 3 include that the supporting plate of the fixed double-deck diaphragm (does not mark, bracket plate shape is circular sheet metal, effect in figure
It is fixed diaphragm, supporting plate is mobile, and band dynamic diaphragm is mobile).
The double-deck diaphragm includes upper diaphragm 301 and the lower diaphragm 302 for being fixedly connected on 301 bottom of upper diaphragm, when pumping rod 4
When driving supporting plate mobile, it is fixed at the top of supporting plate and fuel oil is pumped into pump chamber and discharge pump by the double-deck diaphragm of bottom
Chamber.
The flexible strength of upper diaphragm 301 and lower diaphragm 302 in order to further increase, avoids diaphragm from being broken, in upper diaphragm
301 and lower diaphragm 302 in be provided with the flexible reinforcing rib 303 for increasing its physical strength, flexible reinforcing rib 303 plays flexibility
The effect of support frame, when by significantly deformation power, flexible reinforcing rib 303 plays support and protects for upper diaphragm 301, lower diaphragm 302
Upper diaphragm 301, the effect of lower diaphragm 302 are protected, upper diaphragm 301, the fracture of lower diaphragm 302 or substantially deformation are prevented.
Meanwhile when the excessive forfeiture effect of a single diaphragm deformation, such as upper diaphragm 301, lower diaphragm 302 plays its function
Effect.
In order to reduce the vibration of the pump housing 1, damper cap 2 is assembled in the upper end of the pump housing 1, specifically, damper cap 2 is inside
Hollow structure has lid chamber, and multiple damping spring balls 201, damping spring ball 201 and the pump housing 1 are laid in damper cap 2
The setting of lateral wall interval.The lid of damper cap 2 is equipped with the pilot hole cooperated with the pump housing 1, by Assembly rail such as threaded rod, through dress
It is assembled to after distribution on the side wall of the pump housing 1
When the pump housing 1 shakes, damping spring ball 201 starts to shake, and shows that small ball shakes, and the material of small ball is to close
Golden material, physical shock characteristic are designed change (changing on material) according to the production material of the pump housing 1, and amplitude peak allows small
The vibration frequency of steel ball is approximate with the pump housing 1.The vibration of small ball is offset by the spring being connected on small ball.
Damping spring ball 201 is using the central axes of the pump housing 1 as symmetrical centre, on the inner sidewall of damper cap 2, from upper and
Under, 6-8 layers of distribution are carried out, the damping spring ball 201 of that layer of same level lays 8-10, two neighboring damping spring ball
201 (the folders on identical perpendicular direction and on same level direction between adjacent damping spring ball 201 with 30 degree
Angle), using above-mentioned space layout, further increase cushioning effect.
By shock-damping structure and damping modes, effectively the vibration of the pump housing 1 is conducted, shock absorbing.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of diaphragm gasoline pump, which is characterized in that including the pump housing, the pump housing is communicated with oil inlet pipe, flowline and returns
Oil pipe, the oil inlet pipe, flowline and oil return pipe are respectively arranged with oil inlet valve, fuel-displaced valve and oil return valve；
The pump housing is equipped with damper cap, and the damper cap is assemblied in the top of the pump housing, multiple dampings are laid in the damper cap
The lateral wall interval of spring ball, the damping spring ball and the pump housing is arranged；
The drawing device of pump drainage fuel oil is provided in the pump housing, the drawing device includes pumping rod, and the pumping rod is equipped with
Double webbing members；
Double webbing members include the supporting plate of the fixed double-deck diaphragm, are respectively fixedly connected at the top and bottom of the supporting plate
The double-deck diaphragm, the diaphragm is interior to be equipped with flexible reinforcing rib；
The bottom of the pumping rod is equipped with rocker arm, and rocker arm is connected with cam, is provided with reset spring on the body of rod of the pumping rod.
2. diaphragm gasoline pump according to claim 1, which is characterized in that the lid of the damper cap is equipped with and the pump housing
The pilot hole of cooperation.
3. diaphragm gasoline pump according to claim 1, which is characterized in that the damping spring ball includes alloy material
Small ball, the small ball are connected by spring and the inner wall of damper cap, and the lateral wall interval of the small ball and the pump housing is arranged.
4. diaphragm gasoline pump according to claim 1, which is characterized in that the body of rod of the pumping rod is equipped with and spring
The end of the spring base of cooperation, spring one end is assemblied on spring base.
5. diaphragm gasoline pump according to claim 1, which is characterized in that be provided with pumping rod cooperation in the pump housing
Oil sealing.
6. diaphragm gasoline pump according to claim 1, which is characterized in that the lower end of the oil inlet valve is provided with filtering
Piece.
7. diaphragm gasoline pump according to claim 6, which is characterized in that the shape of the filter is arc.
8. diaphragm gasoline pump according to claim 1, which is characterized in that the damping spring ball is with the central axes of the pump housing
For symmetrical centre, in distributed multilevel on the inner sidewall of damper cap, 6-10 damping spring ball is distributed in each layer.
9. diaphragm gasoline pump according to claim 8, which is characterized in that two neighboring damping spring ball is in perpendicular
And the angle on horizontal plane with 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920194664.4U CN209687695U (en) | 2019-02-13 | 2019-02-13 | A kind of diaphragm gasoline pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920194664.4U CN209687695U (en) | 2019-02-13 | 2019-02-13 | A kind of diaphragm gasoline pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687695U true CN209687695U (en) | 2019-11-26 |
Family
ID=68601828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920194664.4U Active CN209687695U (en) | 2019-02-13 | 2019-02-13 | A kind of diaphragm gasoline pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209687695U (en) |
-
2019
- 2019-02-13 CN CN201920194664.4U patent/CN209687695U/en active Active
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