CN206439170U - A kind of reciprocating pump using flexible middle gland - Google Patents
A kind of reciprocating pump using flexible middle gland Download PDFInfo
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- CN206439170U CN206439170U CN201720120255.0U CN201720120255U CN206439170U CN 206439170 U CN206439170 U CN 206439170U CN 201720120255 U CN201720120255 U CN 201720120255U CN 206439170 U CN206439170 U CN 206439170U
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- gland
- lower valve
- valve base
- middle gland
- base
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Abstract
The utility model discloses a kind of reciprocating pump using flexible middle gland, the pump housing and upper cover plate of step are provided with including inner chamber, the pump housing inner chamber is provided with gland and upper valve base in liquid outlet side, liquid suction side is provided with lower valve base, the lower end of the upper valve base and the lower valve base is abutted with the step of pump housing inner chamber, upper valve base is pressed on the step of pump housing inner chamber by the upper cover plate by the upper gland of extruding, is provided with the upper valve base in upper valve, the lower valve base and is provided with lower valve；Provided with middle gland between upper valve base and lower valve base, the upper end and upper valve base lower end of middle gland are abutted against, it is provided with lower valve return spring provided with middle gland support spring so that lower valve base is pressed on the step of pump housing inner chamber between middle gland and lower valve base, between the middle gland and lower valve lower valve is pressed in lower valve base.The service life of middle gland substantially prolongs relative to prior art using the reciprocating pump of flexible middle gland in the utility model.
Description
Technical field
The utility model is related to a kind of reciprocating pump, more particularly to a kind of reciprocating pump using flexible middle gland.
Background technology
Reciprocating pump is to move back and forth to make swept volume in cylinder alternately increase and contract in pumping cylinder by piston, plunger or barrier film
The small positive displacement pump to convey liquid or be allowed to supercharging.As shown in figure 1, in the prior art, in the pump parts of reciprocating pump, having
Upper valve base and lower valve base, the lower end and the step phase branch in the pump housing of upper valve base and lower valve base are provided with a kind of pump parts of structure
Support, the upper end of upper valve base realized in the pump housing and positioned by being squeezed in for upper gland, is provided between upper valve base and lower valve base pair
The spacing middle gland of lower valve base；This middle gland is rigid structure, and job requirement can not axially move up and down, therefore middle
Gland is highly more than installing space size, presses it to deform by upper valve base during installation.Middle gland is in compressive deformation after installing
State, because size is difficult to control to, it is very big to frequently result in the deformation of middle gland, ruptures, service life is shorter, has a strong impact on quickly
The quality of pump.Therefore, it is the problem of solving at present to create a kind of middle gland of service life length.
Utility model content
For deficiencies of the prior art, the purpose of this utility model is to propose one kind using flexible intermediate pressure
The reciprocating pump of set, the reciprocating pump of the flexible middle gland of this use substantially prolongs the use of middle gland relative to prior art
Life-span.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of reciprocating pump using flexible middle gland, including inner chamber are provided with the pump housing and upper cover plate of step, the pump housing
Inner chamber is provided with gland and upper valve base in liquid outlet side, and lower valve base, the upper valve base and institute are provided with liquid suction side
The lower end for stating lower valve base is abutted with the step of pump housing inner chamber, and upper valve base is pressed in the pump housing by the upper cover plate by the upper gland of extruding
On the step of inner chamber, upper gland upper end and upper cover plate is abutted against and lower end and the upper end of upper valve base are abutted against is set in the upper valve base
Have and lower valve is provided with upper valve, the lower valve base, upper valve return spring is provided between upper gland and upper valve to be pressed in upper valve
In valve seat；Provided with middle gland between upper valve base and lower valve base, the upper end and upper valve base lower end of the middle gland are abutted against,
Provided with middle gland support spring so that lower valve base is pressed on the step of pump housing inner chamber between the middle gland and lower valve base, institute
State the upper end of middle gland support spring and middle gland is connected and lower end and lower valve base are abutted against, the middle gland and lower valve
Between provided with lower valve return spring so that lower valve is pressed in lower valve base.
In the middle of this use is flexible in the reciprocating pump of gland, the middle gland support spring of setting, which has, makes lower valve base not loosen
Elastic force, the setting of middle gland support spring solves the uncertainty of middle gland installing space size, it is to avoid upper valve
Damage the possibility of middle gland when pressure is excessive between seat and lower valve base by pressure, greatly prolong the service life of middle gland.
Further, the top of middle gland described in the utility model is provided with cylindrical cavity, the inner chamber and middle gland
Through hole is provided between outer wall.The cylindrical cavity on the top of middle gland is work chamber, and through hole is the water of suction side and outlet side
Circulation road.
Further, through hole described in the utility model is arranged on the intracavity bottom.
Further, through hole described in the utility model is circular or ellipse.
Further, the outer wall belt multi-stage stairs that middle gland described in the utility model constantly reduces for diameter from top to bottom
Cylindrical, the cylinder of middle gland most subordinate constitutes lower valve limited block, middle gland support spring and lower valve return bullet
Certain grade step of the spring upper end respectively with middle gland outer wall offsets, and lower valve return spring is located at middle gland support spring hole
It is interior；The lower valve limited block is located in lower valve return spring hole, in its natural state between the lower end of lower valve limited block and lower valve
Keep certain interval.Gland support spring and lower valve return spring in the middle of the setting of cylindrical step, convenient connection.
Compared with prior art, the beneficial effects of the utility model are mainly reflected in：It is of the present utility model middle using flexibility
The reciprocating pump of gland solves the uncertainty of middle gland installing space size, substantially prolongs the use longevity of middle gland
Life.
Brief description of the drawings
Fig. 1 is the reciprocating pump structure schematic diagram of the prior art using gland in the middle of rigidity；
Fig. 2 is the reciprocating pump structure schematic diagram using flexible middle gland of the utility model embodiment.
In accompanying drawing, the 1- pump housings；2- lower valve bases；3- upper valve bases；Gland in the middle of 4-；Gland support spring in the middle of 5-；6- lower valves；
7- upper valves；8- lower valve return springs；9- upper valve return springs；10- suction inlets；11- pumping cylinders；12- outlets；The upper glands of 13-；
14- upper cover plates；15- work chamber；16- through holes；17- lower valve limited blocks.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 2 the reciprocating pump using flexible middle gland of the present embodiment, including inner chamber are provided with the pump housing 1 of step
With upper cover plate 14, the inner chamber of the pump housing 1 is provided with gland 13 and upper valve base 3 in liquid outlet side, is set in liquid suction side
There is lower valve base 2, the lower end of the upper valve base 3 and the lower valve base 2 is abutted with the step of the inner chamber of the pump housing 1, the upper cover plate 14 leads to
Cross extruding upper gland 13 upper valve base 3 is pressed on the inner chamber step of the pump housing 1, the upper upper end of gland 13 and upper cover plate 14 abut against and under
End and the upper end of upper valve base 3 are abutted against, and are provided with the upper valve base 3 in upper valve 7, the lower valve base 2 and are provided with lower valve 6, upper gland
It is provided with upper valve return spring 9 between 13 and upper valve 7 upper valve 7 is pressed in upper valve base 3；Between upper valve base 3 and lower valve base 2
Provided with middle gland 4, the upper end and the lower end of upper valve base 3 of the middle gland 4 are abutted against, the middle gland 4 and lower valve base 2 it
Between provided with middle gland support spring 5 so that lower valve base 2 is pressed on the step of pump housing inner chamber, the middle gland support spring 5
Upper end and middle gland 4 is connected and lower end and lower valve base 2 are abutted against, returned between the middle gland 4 and lower valve 6 provided with lower valve
Position spring 8 is so that lower valve 6 is pressed in lower valve base 2.In the middle of this flexibility in gland, the middle gland support spring 5 of setting has
Make the tight elastic force of lower valve base 2.
The cylindrical for the outer wall belt multi-stage stairs that middle gland 4 constantly reduces for diameter from top to bottom, middle gland 4 is most
The cylinder of subordinate constitutes lower valve limited block 17, middle gland support spring 5 and the upper end of lower valve return spring 8 respectively with intermediate pressure
Certain grade of step for covering 4 outer walls offsets, and lower valve return spring 8 is located in the middle hole of gland support spring 5；The lower valve limited block
17 are located in the hole of lower valve return spring 8, between keeping certain between the lower end of lower valve limited block 17 and lower valve 6 in its natural state
Every.Gland support spring 5 and lower valve return spring 8 in the middle of the setting of cylindrical step, convenient connection.Middle gland 4 it is upper
Portion is provided with cylindrical cavity, and cylindrical cavity is work chamber 15, is inhaled between the intracavity bottom and the middle outer wall of gland 4 provided with connection
Enter the ellipse hole 16 of end and outlet side water stream channel.
Operation principle of the present utility model is：Piston or piston reciprocation motion in pumping cylinder 11 hand over 11 swept volumes in cylinder
Liquid is conveyed for increasing and reducing, when the internal volume of pumping cylinder 11 increases, upper valve 7 is closed, the compression lower valve of lower valve 6 return spring 8 is simultaneously
In open mode, liquid is flowed into pumping cylinder 11 and work chamber 13 from suction inlet 10；When the internal volume of pumping cylinder 11 reduces, lower valve 6
Close, the compression upper valve of upper valve 7 return spring 9 is simultaneously in open mode, and liquid flows into discharge out of pumping cylinder 11 and work chamber 15
Mouth 12.
Reciprocating pump of the present utility model using flexible middle gland, middle gland 4 is set with middle gland support spring 5
Put, solve the uncertainty of the middle installing space size of gland 4, it is to avoid when pressure is excessive between upper valve base 3 and lower valve base 2
Damage the present situation of middle gland 4 by pressure, relative to prior art, substantially prolongs the service life of middle gland 4.
Finally it should be noted that above example is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent
The utility model is described in detail with reference to preferred embodiment by pipe applicant, and one of ordinary skill in the art should manage
Solution, modifies or equivalent substitution to the technical solution of the utility model, without departing from the objective and scope of the technical program,
It all should cover among right of the present utility model.
Claims (5)
1. a kind of reciprocating pump using flexible middle gland, including inner chamber are provided with the pump housing and upper cover plate of step, the pump housing
Chamber is provided with gland and upper valve base in liquid outlet side, is provided with lower valve base in liquid suction side, the upper valve base and described
The lower end of lower valve base is abutted with the step of pump housing inner chamber, and upper valve base is pressed in the pump housing by the upper cover plate by the upper gland of extruding
On chamber step, upper gland upper end and upper cover plate is abutted against and lower end and the upper end of upper valve base are abutted against；It is provided with the upper valve base
Lower valve is provided with upper valve, the lower valve base, upper valve return spring is provided between upper gland and upper valve upper valve is pressed in into upper valve
In seat；Provided with middle gland between upper valve base and lower valve base, the upper end and upper valve base lower end of the middle gland are abutted against, its
It is characterised by：It is provided with middle gland support spring between the middle gland and lower valve base lower valve base is pressed in into pump housing inner chamber
On step, the upper end of the middle gland support spring and middle gland connection and lower end and lower valve base are abutted against, the centre
It is provided with lower valve return spring between gland and lower valve lower valve is pressed in lower valve base.
2. the reciprocating pump according to claim 1 using flexible middle gland, it is characterised in that：The middle gland it is upper
Portion is provided with cylindrical cavity, and through hole is provided between the inner chamber and middle gland outer wall.
3. the reciprocating pump according to claim 2 using flexible middle gland, it is characterised in that：The through hole is arranged on institute
State intracavity bottom.
4. the reciprocating pump according to claim 2 using flexible middle gland, it is characterised in that：The through hole to be circular or
Ellipse.
5. the reciprocating pump according to claim 1 using flexible middle gland, it is characterised in that：The middle gland is from upper
The cylindrical of the outer wall belt multi-stage stairs down constantly reduced for diameter, the cylinder of middle gland most subordinate constitutes lower valve limit
Position block, certain grade of step of middle gland support spring and lower valve return spring upper end respectively with middle gland outer wall offsets, and under
Valve return spring is located in middle gland support spring hole；The lower valve limited block is located in lower valve return spring hole, in nature
Certain interval is kept under state between the lower end of lower valve limited block and lower valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120255.0U CN206439170U (en) | 2017-02-09 | 2017-02-09 | A kind of reciprocating pump using flexible middle gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120255.0U CN206439170U (en) | 2017-02-09 | 2017-02-09 | A kind of reciprocating pump using flexible middle gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206439170U true CN206439170U (en) | 2017-08-25 |
Family
ID=59634197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720120255.0U Active CN206439170U (en) | 2017-02-09 | 2017-02-09 | A kind of reciprocating pump using flexible middle gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206439170U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461328A (en) * | 2017-09-07 | 2017-12-12 | 德帕姆(杭州)泵业科技有限公司 | Three-plunger reciprocating Pumpp |
| WO2022016911A1 (en) * | 2020-07-23 | 2022-01-27 | 北京天地玛珂电液控制系统有限公司 | Plunger pump and pump station |
| WO2022016910A1 (en) * | 2020-07-23 | 2022-01-27 | 北京天地玛珂电液控制系统有限公司 | Emulsion plunger pump |
-
2017
- 2017-02-09 CN CN201720120255.0U patent/CN206439170U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461328A (en) * | 2017-09-07 | 2017-12-12 | 德帕姆(杭州)泵业科技有限公司 | Three-plunger reciprocating Pumpp |
| WO2022016911A1 (en) * | 2020-07-23 | 2022-01-27 | 北京天地玛珂电液控制系统有限公司 | Plunger pump and pump station |
| WO2022016910A1 (en) * | 2020-07-23 | 2022-01-27 | 北京天地玛珂电液控制系统有限公司 | Emulsion plunger pump |
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