CN206054256U - Membrane pump - Google Patents
Membrane pump Download PDFInfo
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- CN206054256U CN206054256U CN201621102052.0U CN201621102052U CN206054256U CN 206054256 U CN206054256 U CN 206054256U CN 201621102052 U CN201621102052 U CN 201621102052U CN 206054256 U CN206054256 U CN 206054256U
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- groove
- pressure release
- pump case
- thread
- decompression cover
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Abstract
The utility model discloses a kind of membrane pump, including：Pump case, is formed with mounting groove on the pump case, have female thread, the intercommunicating pore of insertion is formed with the inwall of the mounting groove on the internal perisporium of the mounting groove；Pressure release valve block, the pressure release valve block are movably arranged in the mounting groove；Decompression cover, is provided with the pump case and extends and have on outer peripheral face externally threaded thread fiting part on the decompression cover, the thread fiting part and the screw-internal thread fit are being threaded io the pump case by the decompression cover；And pressure release spring, the pressure release spring is only against between the decompression cover and the pressure release valve block.According to membrane pump of the present utility model, it is connected using screw thread between decompression cover and pump case, to control the decrement of pressure release spring, so as to control the vent pressure of membrane pump.Thus, being fixedly connected between decompression cover and pump case had both been ensure that, the purpose of pressure release can have been reached again, can be with improve production efficiency.
Description
Technical field
This utility model is related to field of fluid machinery, more particularly, to a kind of membrane pump.
Background technology
In correlation technique, membrane pump all has high pressure chest pressure relief, its can in membrane pump high pressure chest hypertonia,
Normal pressure release is protecting membrane pump.Wherein, high pressure chest pressure relief includes decompression cover, pressure release spring, pressure release spring base, relief valve
The parts such as piece, and be fixed by multiple tapping screws, so that pressure release spring reaches the decrement of expected requirement, so as to control
Vent pressure processed.However, this adopt tapping screw to be fixed in the way of controlling pressure release amount of spring compression, it is unfavorable for reality
Production, and efficiency is low.
Utility model content
This utility model aims to solve the problem that one of technical problem present in prior art.For this purpose, one of the present utility model
Purpose is to propose a kind of membrane pump, and the production efficiency of this membrane pump is high.
According to membrane pump of the present utility model, including：Pump case, is formed with mounting groove on the pump case, the mounting groove
There is on internal perisporium female thread, the intercommunicating pore of insertion on the inwall of the mounting groove, is formed with；Pressure release valve block, the pressure release valve block
It is movably arranged in the mounting groove；Decompression cover, is provided with the pump case and extends and on outer peripheral face on the decompression cover
With externally threaded thread fiting part, the thread fiting part and the screw-internal thread fit are so that the decompression cover to be threaded io
The pump case；And pressure release spring, the pressure release spring is only against between the decompression cover and the pressure release valve block.
According to membrane pump of the present utility model, it is connected using screw thread between decompression cover and pump case, to control pressure release bullet
The decrement of spring, so as to control the vent pressure of membrane pump.Thus, being fixedly connected between decompression cover and pump case had both been ensure that,
The purpose of pressure release can be reached again, can be with improve production efficiency.
In addition, can also have following additional technical feature according to membrane pump of the present utility model：
According to one embodiment of the present utility model, the mounting groove include axially towards the pump case center position according to
The first groove and the second groove that secondary connected and cross-sectional area is sequentially reduced, have the female thread on the internal perisporium of first groove,
The intercommunicating pore is formed on the inwall away from first groove of second groove, and the pressure release valve block is located at second groove
It is interior.
According to one embodiment of the present utility model, membrane pump is further included：First seal, the first seal
It is located between the thread fiting part and first groove to seal the gap between the thread fiting part and first groove.
According to one embodiment of the present utility model, the first seal is located at first groove and second groove
Between the free end end face of joint face and the thread fiting part.
According to one embodiment of the present utility model, the upper shape of at least one of the thread fiting part and first groove
Into having for accommodating the holding tank of the first seal.
According to one embodiment of the present utility model, the first seal is sealing gasket.
According to one embodiment of the present utility model, one end away from the pump case center of the thread fiting part is provided with
Along the extension for extending radially outwardly of the decompression cover, between the extension and the pump case, second seal is provided with.
According to one embodiment of the present utility model, when the decompression cover is fully screwed into the pump case, the pressure release bullet
Spring is right up to the membrane pump and requires the decrement needed for maximum pressure.
According to one embodiment of the present utility model, one end away from the pump case center of the thread fiting part is provided with
Portion is screwed into, the outer peripheral face for being screwed into portion includes parallel to each other two planar portions.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or by it is of the present utility model practice recognize.
Description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from the description with reference to accompanying drawings below to embodiment
Become obvious and easy to understand, wherein：
Fig. 1 is the schematic diagram of the membrane pump according to this utility model embodiment.
Fig. 2 is the profile of the membrane pump according to this utility model embodiment；
Fig. 3 is the profile of the decompression cover according to this utility model embodiment；
Fig. 4 is the top view of the decompression cover according to this utility model embodiment；
Fig. 5 is the profile of the pump case of the membrane pump according to this utility model embodiment.
Reference：
100：Membrane pump；
1：Pump case；11：Mounting groove；111：First groove；1111：Female thread；112：Second groove；
12：Holding tank；13：Groove；14：High pressure chest；15：Intercommunicating pore；
2：Decompression cover；21：Thread fiting part；211：Free end end face；
22：Extension；23：It is screwed into portion；
3：First seal；4：Second seal；
5：Pressure release valve block；
6：Pressure release spring；
7：Pressure release spring base.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element or the element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, is only used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
In description of the present utility model, it is to be understood that term " centre ", " on ", the orientation of instruction such as D score or
Position relationship is, based on orientation shown in the drawings or position relationship, to be for only for ease of description this utility model and simplify description,
Rather than indicate or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, because
This is it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For
For one of ordinary skill in the art, concrete meaning of the above-mentioned term in this utility model can be understood with concrete condition.
The membrane pump according to this utility model embodiment is described below with reference to Fig. 1-Fig. 5.
As Figure 1-Figure 5, the membrane pump 100 according to this utility model embodiment, including pump case 1, pressure release valve block 5, lets out
Gland 2 and pressure release spring 6.
Mounting groove 11 is formed with pump case 1, there is on the internal perisporium of mounting groove 11 female thread 1111, the inwall of mounting groove 11
On be formed with the intercommunicating pore 15 of insertion.Pressure release valve block 5 is movably arranged in mounting groove 11.Pump case 1 is provided with decompression cover 2
Extend and have on outer peripheral face externally threaded thread fiting part 21, thread fiting part 21 and female thread 1111 coordinate with by pressure release
Lid 2 is threaded io pump case 1.Pressure release spring 6 is only against between decompression cover 2 and pressure release valve block 5.
As Figure 1-Figure 5, mounting groove 11 is machined with pump case 1, the top of the inner peripheral surface of mounting groove 11 is machined with interior spiral shell
Stricture of vagina, the bottom of mounting groove 11 are machined with the intercommunicating pore 15 of insertion, and pressure release valve block 5 is covered on intercommunicating pore 15, intercommunicating pore 15 it is upper
End is communicated with the low pressure chamber of membrane pump 100 (the relatively low chamber of Fluid pressure in pump case 1), intercommunicating pore 15 with lower end and
The high pressure chest 14 of membrane pump 100 is communicated, and external screw thread, shape are machined with the outer peripheral face of the part that decompression cover 2 extends towards pump case 1
Into thread fiting part 21, decompression cover 2 is fully screwed into into pump case 1, then corresponding female thread 1111 and thread fiting part 21 form spiral shell
After stricture of vagina connection, pump case 1 and decompression cover 2 are assembled in place, pressure release spring 6 is in compressive state, and pressure release spring 6 is only against decompression cover 2
Between lower end and pressure release valve block 5, under the elastic force effect of pressure release spring 6, pressure release valve block 5 is pressed on intercommunicating pore 15 and blocks connection
Hole 15, now the fluid in high pressure chest 14 can not pass through intercommunicating pore 15.When the Fluid pressure in high pressure chest 14 is too high, high pressure chest
The elastic force for overcoming pressure release spring 6 is backed down pressure release valve block 5 and flows into low pressure chamber by the fluid in 14, realizes pressure release.Thus, by
Structure is directly threaded on pump case 1 and decompression cover 2, pressure release spring 6 not only can be made to reach the decrement of expected requirement, so as to
Control vent pressure, and the connection of decompression cover 2 and pump case 1 is very easy to, be conducive to actual production, and improve effect
Rate.
Further, pressure release spring base 7 is also provided with pressure release valve block 5, the central authorities of pressure release spring base 7 are provided with letting out
The fixed part that pressing spring 6 extends, one end of pressure release spring 6 are suitable to be set on the fixed part, to ensure that pressure release spring 6 will not
Shift.
According to the membrane pump 100 of this utility model embodiment, by the female mounting groove of tool is arranged on pump case 1
11, and arrange on decompression cover 2 with the cooperation of mounting groove 11 with externally threaded thread fiting part 21, both ensure that decompression cover 2
Quick connection between pump case 1, is beneficial to actual production, realizes the control to vent pressure again.
In a specific embodiment of the present utility model, as shown in Fig. 1-Fig. 2 and Fig. 5, mounting groove 11 is included vertically
It is sequentially connected towards pump case center position (for example, the direction in Fig. 1 and Fig. 2 from top to bottom) and cross-sectional area is sequentially reduced
One groove 111 and the second groove 112, now mounting groove 11 is step groove, has female thread 1111, even on the internal perisporium of the first groove 111
Through hole 15 is formed on the inwall (for example, the diapire in Fig. 2) away from the first groove 111 of the second groove 112, and pressure release valve block 5 is located at
In second groove 112 and it is suitable to be covered on intercommunicating pore 15.
Further, as Figure 1-Figure 5, membrane pump 100 also includes：First seal 3, first seal 3 are located at spiral shell
With the gap between sealing thread fiting part 21 and the first groove 111 between stricture of vagina auxiliary section 21 and the first groove 111, it is ensured that sealing effect
Really.
Alternatively, as Figure 2-Figure 5, first seal 3 is located at the joint face and spiral shell of the first groove 111 and the second groove 112
Between the free end end face 211 of stricture of vagina auxiliary section 21.Certainly, this utility model not limited to this, first seal 3 may be located on
The undressed of the undressed female inner peripheral surface and thread fiting part 21 of one groove 111 has (figure between externally threaded outer peripheral face
It is not shown).
Alternatively, first seal 3 is sealing gasket, but not limited to this.
Further, could be formed with least one of thread fiting part 21 and the first groove 111 for accommodating first
The holding tank 12 of sealing member 3, holding tank 12 play a part of positioning to first seal 3 so that first seal 3 will not be in spiral shell
Arbitrarily move between stricture of vagina auxiliary section 21 and the first groove 111, so as to ensure that the sealing between pump case 1 and decompression cover 2.For example,
Can holding tank 12 be set, as shown in Figure 5 only on the joint face of the first groove 111 and the second groove 112；It is, of course, also possible to only exist
Holding tank 12 is set in the free end end face 211 of thread fiting part 21；Or, in the first groove 111 and the joint face of the second groove 112
Recessed channel is respectively provided with the free end end face 211 of thread fiting part 21, the two recessed channels are toward each other collectively forming
For accommodating the holding tank 12 (not shown) of first seal 3.Further, it is also possible to have interior spiral shell in the undressed of the first groove 111
On the inner peripheral surface of stricture of vagina, or the undressed of thread fiting part 21 have on externally threaded outer peripheral face setting holding tank 12, it is of course also possible to
There is externally threaded outer peripheral face in the undressed inner peripheral surface for having female thread 1111 and the undressed of thread fiting part 21 of the first groove 111
On be respectively provided with holding tank 12 (not shown).
In one embodiment of the present utility model, one end (for example, Fig. 1 away from pump case center of thread fiting part 21
With the upper end in Fig. 2) extension 22 for extending radially outwardly along decompression cover 2 is provided with, is provided between extension 22 and pump case 1
Two sealing members 4.As Figure 2-Figure 5, is arranged between the lower surface of the contact surface and extension 22 of extension 22 and pump case 1
Two sealing members 4, further, could be formed with the contact surface of pump case 1 for accommodating the groove 13 of second seal 4, with
In positioning second seal 4.Thus, can further strengthen the sealing effectiveness of membrane pump 100, prevent leakage.3 He of first seal
Second seal 4 is two seals, so as to improve the sealing effectiveness of membrane pump 100.
In one embodiment of the present utility model, when decompression cover 2 is fully screwed into pump case 1, pressure release spring 6 is right up to
Membrane pump 100 requires the decrement needed for maximum pressure.As shown in Fig. 2 decompression cover 2 is fully screwed into pump case 1, now on decompression cover
External screw thread and pump case female thread it is fully mated in place, decompression cover cannot continue to be screwed into downwards pump case 1, and pressure release spring 6 is just
The decrement that membrane pump 100 requires needed for maximum pressure is reached, and just to be can guarantee that and membrane pump is reached when the Fluid pressure of high pressure chest 14
100 when requiring maximum pressure, and the fluid of high pressure chest 14 could continue compression pressure release spring 6 by intercommunicating pore 15 and back down relief valve
Piece 5, flows into low pressure chamber then to reach the purpose of pressure release.
In further embodiment of the present utility model, one end away from pump case center of thread fiting part 21 (for example, is schemed
Upper end in 1 and Fig. 2) portion of being screwed into 23 is provided with, the outer peripheral face for being screwed into portion 23 includes parallel to each other two planar portions.Such as Fig. 3-figure
Shown in 4, the portion of being screwed into 23 is provided with the top of decompression cover 2, be screwed into the outer peripheral face in portion 23 and put down by multipair two parallel to each other
Face constitutes, such as the outer peripheral face that portion 23 is screwed in Fig. 4 is hexagon, thus, can use the clamping such as conventional dismantling device such as spanner
Portion 23 is screwed into, it is to carry out installing, dismantle, time saving and energy saving.Thus, it is possible to quickly and easily dismount decompression cover 2, production effect is improved
Rate.
Other according to the membrane pump 100 of this utility model embodiment are constituted and are operated for ordinary skill people
All it is known for member, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
" example ", " specific example ", or the description of " some examples " etc. mean specific features, the knot described with reference to the embodiment or example
Structure, material or feature are contained at least one embodiment of the present utility model or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
Various changes, modification, replacement can be carried out in the case of without departing from principle of the present utility model and objective to embodiment and is become
Type, scope of the present utility model are limited by claim and its equivalent.
Claims (9)
1. a kind of membrane pump, it is characterised in that include：
Pump case, is formed with mounting groove on the pump case, on the internal perisporium of the mounting groove have female thread, the mounting groove it is interior
The intercommunicating pore of insertion is formed with wall；
Pressure release valve block, the pressure release valve block are movably arranged in the mounting groove；
Decompression cover, is provided with the pump case and extends and coordinate with externally threaded screw thread on outer peripheral face on the decompression cover
Portion, the thread fiting part and the screw-internal thread fit are being threaded io the pump case by the decompression cover；And
Pressure release spring, the pressure release spring are only against between the decompression cover and the pressure release valve block.
2. membrane pump according to claim 1, it is characterised in that the mounting groove is included axially towards in the pump case
Heart direction is sequentially connected and cross-sectional area is sequentially reduced the first groove and the second groove, have on the internal perisporium of first groove described
Female thread, the intercommunicating pore are formed on the inwall away from first groove of second groove, and the pressure release valve block is located at institute
State in the second groove.
3. membrane pump according to claim 2, it is characterised in that further include：
First seal, the first seal are located between the thread fiting part and first groove to seal the screw thread
Gap between auxiliary section and first groove.
4. membrane pump according to claim 3, it is characterised in that the first seal is located at first groove and described
Between the free end end face of the joint face of the second groove and the thread fiting part.
5. membrane pump according to claim 3, it is characterised in that in the thread fiting part and first groove at least
It is formed with one for accommodating the holding tank of the first seal.
6. membrane pump according to claim 3, it is characterised in that the first seal is sealing gasket.
7. membrane pump according to claim 1, it is characterised in that the thread fiting part away from the pump case center
One end is provided with the extension for extending radially outwardly along the decompression cover, is provided with second close between the extension and the pump case
Sealing.
8. the membrane pump according to any one of claim 1-7, it is characterised in that when the decompression cover be fully screwed into it is described
During pump case, the pressure release spring is right up to the membrane pump and requires the decrement needed for maximum pressure.
9. membrane pump according to claim 1, it is characterised in that the thread fiting part away from the pump case center
One end is provided with the portion of being screwed into, and the outer peripheral face for being screwed into portion includes parallel to each other two planar portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621102052.0U CN206054256U (en) | 2016-09-30 | 2016-09-30 | Membrane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621102052.0U CN206054256U (en) | 2016-09-30 | 2016-09-30 | Membrane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054256U true CN206054256U (en) | 2017-03-29 |
Family
ID=58363428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621102052.0U Active CN206054256U (en) | 2016-09-30 | 2016-09-30 | Membrane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630488A (en) * | 2019-11-04 | 2019-12-31 | 宁波强生电机有限公司 | Pressure stabilizing structure of diaphragm pump |
| CN111946604A (en) * | 2020-06-28 | 2020-11-17 | 金华市双鼎机械有限公司 | Diaphragm pump body mechanism assembly for agricultural anti-backflow |
-
2016
- 2016-09-30 CN CN201621102052.0U patent/CN206054256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630488A (en) * | 2019-11-04 | 2019-12-31 | 宁波强生电机有限公司 | Pressure stabilizing structure of diaphragm pump |
| CN111946604A (en) * | 2020-06-28 | 2020-11-17 | 金华市双鼎机械有限公司 | Diaphragm pump body mechanism assembly for agricultural anti-backflow |
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