CN214577563U - Diaphragm type metering pump - Google Patents
Diaphragm type metering pump Download PDFInfo
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- CN214577563U CN214577563U CN202023062746.5U CN202023062746U CN214577563U CN 214577563 U CN214577563 U CN 214577563U CN 202023062746 U CN202023062746 U CN 202023062746U CN 214577563 U CN214577563 U CN 214577563U
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Abstract
The utility model discloses a diaphragm type measuring pump, including motor and pump head, be equipped with the medium runner on the pump head, the medium runner is including the entrance point, transmission end and exit end, the transmission end is located and switches on the setting each other between entrance point and the exit end, be equipped with import check valve subassembly on the entrance point, be equipped with export check valve subassembly on the exit end, prevent relative slip and carry out first step through screw-thread fit, rethread sealing ring and the support that corresponds press the platform cooperation to realize further sealed, it is more reasonable to arrange, it is also more stable when using, sealed effect is also better.
Description
Technical Field
The utility model relates to a diaphragm type measuring pump technical field, in particular to diaphragm type measuring pump.
Background
The diaphragm type metering pump replaces a piston with a specially designed and processed flexible diaphragm, and realizes reciprocating motion under the action of a driving mechanism to finish the processes of suction and discharge; the electric diaphragm pump really realizes the isolation between the metered fluid and the driving lubricating mechanism in structure due to the isolation function of the diaphragm; the high-tech structural design and the selection of novel materials greatly improve the service life of the diaphragm, and the diaphragm type metering pump becomes a main pump type in fluid metering application at present due to the excellent corrosion resistance of the composite material.
When the diaphragm metering pump is used, one-way valves are required to be added at the inlet end and the outlet end, the one-way valves can prevent the fluid medium of the metering pump from flowing back, but when the one-way valves are connected to the metering pump, liquid leakage easily occurs at the joint of the one-way valves and the metering pump.
Disclosure of Invention
The utility model aims at: in order to overcome the defects of the prior art, the utility model provides a diaphragm type metering pump, the overall arrangement is more reasonable, and is also more stable when using, and sealed effect is also better.
The utility model discloses a diaphragm type measuring pump, including motor and pump head, be equipped with the medium runner on the pump head, the medium runner is including entrance point, transmission end and exit end, and the transmission end is located and switches on the setting each other between entrance point and the exit end, is equipped with import check valve subassembly on the entrance point, is equipped with export check valve subassembly, its characterized in that on the exit end: the inlet check valve component comprises an inlet valve body and an inlet valve core, a first thread section is arranged on the outer peripheral surface of the inlet valve body, the inlet end comprises an inlet valve core mounting cavity and an inlet valve body mounting cavity which are sequentially arranged, an internal thread matched with the first thread section is arranged on the inlet valve body mounting cavity, a first sealing groove is arranged at one end, far away from the inlet end, of the first thread section, a first sealing ring is embedded in the first sealing groove, a first abutting table is arranged on the inner side wall of the inlet valve body mounting cavity, the first sealing ring can abut against the first abutting table to form sealing, the inlet valve core comprises an inlet valve ball and an inlet valve ball reset spring, the inlet valve ball is arranged in the inlet valve core mounting cavity in a sliding mode, a guide column is arranged on the inlet valve core mounting cavity, the inlet valve ball reset spring is sleeved on the guide column in an abutting mode, one end of the inlet valve ball reset spring is connected to the inlet valve ball, and the other end of the inlet valve ball reset spring is arranged on the inlet valve core mounting cavity, the inlet valve body is arranged in a hollow mode to form an inlet flow passage, the inlet valve ball is abutted against the inlet flow passage to form sealing, the outlet check valve assembly comprises an outlet valve body and an outlet valve core, the outlet end is provided with an outlet valve body installation cavity, the outer peripheral surface of the outlet valve body is provided with a second thread section, the outlet valve body installation cavity is provided with internal threads matched with the second thread section, the outlet valve body is in threaded fit with the outlet valve body installation cavity, one end, away from the outlet end, of the second thread section is provided with a second sealing groove, a second sealing ring is embedded in the second sealing groove, the inner side wall of the outlet valve body installation cavity is provided with a second abutting table, the second sealing ring can abut against the second abutting table to form sealing, the outlet valve body is arranged in a hollow mode to form an outlet flow passage, the outlet valve core is arranged in the outlet flow passage, a spring abutting table arranged in a step mode is arranged in the outlet flow passage, and the outlet valve core comprises an outlet valve ball and an outlet valve ball reset spring, the outlet valve ball is arranged in the outlet flow channel in a sliding mode, one end of an outlet valve ball reset spring is connected with the outlet valve ball, the other end of the outlet valve ball reset spring abuts against the spring abutting table, the outlet valve body installation cavity is communicated with the transmission end through the through hole, and the outlet valve ball abuts against the through hole to form sealing.
By adopting the technical scheme, the inlet valve body and the inlet valve body installation cavity are in threaded fit and can be more stable in use, the inlet valve body can be prevented from sliding relative to the inlet valve body installation cavity in use, the sealing effect can be realized by adopting the threaded fit, the sealing performance can be further improved by matching the first sealing ring with the first pressing platform, the inlet valve ball reset spring can provide a reset force for the inlet valve ball to enable the inlet valve ball to abut against an inlet flow channel when not in use, the backflow of a fluid medium is prevented, the guide column can facilitate the installation and the guide of the inlet valve ball reset spring and prevent the inlet valve ball reset spring from deviating from the original position, the outlet valve body and the outlet valve body installation cavity are in threaded fit and can be more stable in use, the outlet valve body can be prevented from sliding relative to the outlet valve body installation cavity in use, and the sealing effect can be realized by adopting the threaded fit, the cooperation of rethread second sealing washer and second support pressure platform can further improve the leakproofness, and outlet valve ball reset spring can provide the power that resets for outlet valve ball and make and contradict on the through-hole when not using, prevents the fluid medium refluence, and the leakproofness can be better when using through the sealing washer with the cooperation of the support pressure platform that corresponds, and the overall arrangement is also more reasonable moreover.
The utility model discloses a further setting again: the inlet valve body comprises a first connecting end and a second connecting end which are arranged in sequence, the first thread section is arranged on the first connecting end, and the outer peripheral surface of the second connecting end is provided with a barb.
Adopt above-mentioned further setting again, the second link is convenient for the connection of body, and the barb can make to use more stably after connecting moreover.
The utility model discloses a further setting again: and a pipe joint is arranged at one end of the outlet valve body, which is far away from the outlet end, and the pipe joint is sleeved on the outlet valve body and is in threaded fit with the outlet valve body.
Adopt above-mentioned further setting again, the coupling can be convenient for the connection of body, and screw-thread fit can prevent coupling and export valve body relative slip for it is more stable when using, adopts screw-thread fit can also make the coupling can change moreover.
The utility model discloses a further setting: and a third sealing ring is pressed at the joint of the pipe joint and the outlet valve body.
Adopt above-mentioned further setting, can prevent the union joint and the junction weeping of export valve body for sealed effect is better when using.
Drawings
FIG. 1 is a view of the pump head and the motor of the present invention;
FIG. 2 is a cross-sectional view of a portion of the pump head of the present invention;
FIG. 3 is an enlarged view of a portion a of FIG. 2;
FIG. 4 is an enlarged view of portion b of FIG. 2;
FIG. 5 is an enlarged view of a portion c of FIG. 3;
fig. 6 is an enlarged view of a portion d of fig. 4.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
the utility model discloses a diaphragm type metering pump, including motor 1 and pump head 2, the pump head 2 is equipped with the medium runner, the medium runner includes entrance point 21, transmission end 22 and exit end 23, transmission end 22 is located between entrance point 21 and exit end 23 and is conducted the setting each other, the entrance point 21 is equipped with import check valve subassembly 3, the exit end 23 is equipped with export check valve subassembly 4, in the utility model implementation case, import check valve subassembly 3 includes import valve body 31 and import case 32, is equipped with first screw section 311 on the outer peripheral face of import valve body 31, entrance point 21 includes import case installation cavity 211 and import valve body installation cavity 212 that set gradually, is equipped with the internal thread that matches with first screw section 311 on the import valve body installation cavity 212, and the one end of keeping away from the entrance point on first screw section 311 is equipped with first seal groove 312, and first seal groove 312 is embedded to be equipped with first sealing washer 313, the inlet valve body installation cavity 212 is provided with a first abutting table 2121 on the inner side wall, a first sealing ring 313 can abut against the first abutting table 2121 to form a seal, the inlet valve core 32 comprises an inlet valve ball 321 and an inlet valve ball return spring 322, the inlet valve ball 321 is slidably arranged in the inlet valve core installation cavity 211, the inlet valve core installation cavity 211 is provided with a guide post 5, the inlet valve ball return spring 322 is sleeved on the guide post 5, one end of the inlet valve ball return spring 322 is connected to the inlet valve ball 321, the other end abuts against the inlet valve core installation cavity 211, the inlet valve body 31 is hollow to form an inlet flow channel 314, the inlet valve ball 321 abuts against the inlet flow channel 314 to form a seal, the outlet check valve assembly 4 comprises an outlet valve body 41 and an outlet valve core 42, the outlet end 23 is provided with an outlet valve body installation cavity 231, the outer peripheral surface of the outlet valve body 41 is provided with a second threaded section 411, the outlet valve body installation cavity 231 is provided with an internal thread matched with the second threaded section 411, the outlet valve body 41 is in threaded fit with the outlet valve body installation cavity 231, one end of the second threaded section 411, which is far away from the outlet end 23, is provided with a second sealing groove 412, a second sealing ring 413 is embedded in the second sealing groove 412, the inner side wall of the outlet valve body installation cavity 231 is provided with a second abutting table 232, the second sealing ring 413 can abut against the second abutting table 232 to form sealing, the outlet valve body 41 is hollow to form an outlet flow passage 414, the outlet valve core 42 is arranged in the outlet flow passage 414, the outlet flow passage 414 is internally provided with a spring abutting table 415 which is arranged in a step shape, the outlet valve core 42 comprises an outlet valve ball 421 and an outlet valve ball return spring 422, the outlet valve ball 421 is slidably arranged in the outlet flow passage 414, one end of the outlet valve ball return spring 422 is connected with the outlet valve ball, the other end abuts against the spring abutting table 415, the outlet valve body installation cavity is communicated with the transmission end 22 through the through hole 6, and the outlet valve ball 421 abuts against the through hole 6 to form sealing, the inlet valve body 31 and the inlet valve body installation cavity 212 are in threaded fit to be more stable in use, the inlet valve body 31 can be prevented from sliding relative to the inlet valve body installation cavity 212 in use, the sealing effect can be achieved through threaded fit, the sealing performance can be further improved through the fit of the first sealing ring 313 and the first abutting table 2121, the inlet valve ball return spring 322 can provide a return force for the inlet valve ball 321 to abut against the inlet flow channel 314 when not in use to prevent the backflow of a fluid medium, the guide post 5 can facilitate the installation and the guide of the inlet valve ball return spring 322 to prevent the inlet valve ball return spring 322 from deviating from the original position, the outlet valve body 41 and the outlet valve body installation cavity 231 are in threaded fit to be more stable in use, and the outlet valve body 41 can be prevented from sliding relative to the outlet valve body installation cavity 231 when in use, can adopt screw-thread fit to have sealed effect, rethread second sealing washer 413 and second support the improvement leakproofness that the cooperation of pressing the platform 232 can be further, export valve ball reset spring 422 can provide the power that resets for export valve ball 421 and make and contradict on through-hole 6 when not using, prevent the fluid medium refluence, it is better to support through sealing washer and correspondence and press the platform cooperation can be when using leakproofness, and the overall arrangement is also more reasonable moreover.
The inlet valve body 31 includes first link 3111 and the second link 3112 that sets gradually, and first screw thread section 311 sets up on first link 3111, is equipped with barb 3113 on the second link 3112 peripheral face, and the connection of the body is convenient for to second link 3112, and barb 3113 can make and use more stably after connecting moreover.
The one end that outlet valve body 41 kept away from exit end 23 is equipped with coupling 7, and coupling 7 cover is established on outlet valve body 41 with outlet valve body 41 screw-thread fit, and coupling 7 can be convenient for the connection of body, and screw-thread fit can prevent coupling 7 and outlet valve body 41 relative slip for it is more stable when using, adopts screw-thread fit can also make coupling 7 can change moreover.
The joint of the pipe joint 7 and the outlet valve body 41 is provided with a third sealing ring 8 in a pressing mode, liquid seepage at the joint of the pipe joint 7 and the outlet valve body 41 can be prevented, and the sealing effect is better when the valve is used.
Claims (4)
1. The utility model provides a diaphragm type measuring pump, is equipped with the medium runner including motor and pump head on the pump head, the medium runner is including entrance point, transmission end and exit end, and the transmission end is located between entrance point and the exit end and switches on the setting each other, is equipped with import check valve subassembly on the entrance point, is equipped with export check valve subassembly, its characterized in that on the exit end: the inlet check valve component comprises an inlet valve body and an inlet valve core, a first thread section is arranged on the outer peripheral surface of the inlet valve body, the inlet end comprises an inlet valve core mounting cavity and an inlet valve body mounting cavity which are sequentially arranged, an internal thread matched with the first thread section is arranged on the inlet valve body mounting cavity, a first sealing groove is arranged at one end, far away from the inlet end, of the first thread section, a first sealing ring is embedded in the first sealing groove, a first abutting table is arranged on the inner side wall of the inlet valve body mounting cavity, the first sealing ring can abut against the first abutting table to form sealing, the inlet valve core comprises an inlet valve ball and an inlet valve ball reset spring, the inlet valve ball is arranged in the inlet valve core mounting cavity in a sliding mode, a guide column is arranged on the inlet valve core mounting cavity, the inlet valve ball reset spring is sleeved on the guide column in an abutting mode, one end of the inlet valve ball reset spring is connected to the inlet valve ball, and the other end of the inlet valve ball reset spring is arranged on the inlet valve core mounting cavity, the inlet valve body is arranged in a hollow mode to form an inlet flow passage, the inlet valve ball is abutted against the inlet flow passage to form sealing, the outlet check valve assembly comprises an outlet valve body and an outlet valve core, the outlet end is provided with an outlet valve body installation cavity, the outer peripheral surface of the outlet valve body is provided with a second thread section, the outlet valve body installation cavity is provided with internal threads matched with the second thread section, the outlet valve body is in threaded fit with the outlet valve body installation cavity, one end, away from the outlet end, of the second thread section is provided with a second sealing groove, a second sealing ring is embedded in the second sealing groove, the inner side wall of the outlet valve body installation cavity is provided with a second abutting table, the second sealing ring can abut against the second abutting table to form sealing, the outlet valve body is arranged in a hollow mode to form an outlet flow passage, the outlet valve core is arranged in the outlet flow passage, a spring abutting table arranged in a step mode is arranged in the outlet flow passage, and the outlet valve core comprises an outlet valve ball and an outlet valve ball reset spring, the outlet valve ball is arranged in the outlet flow channel in a sliding mode, one end of an outlet valve ball reset spring is connected with the outlet valve ball, the other end of the outlet valve ball reset spring abuts against the spring abutting table, the outlet valve body installation cavity is communicated with the transmission end through the through hole, and the outlet valve ball abuts against the through hole to form sealing.
2. The diaphragm metering pump of claim 1, wherein: the inlet valve body comprises a first connecting end and a second connecting end which are arranged in sequence, the first thread section is arranged on the first connecting end, and the outer peripheral surface of the second connecting end is provided with a barb.
3. The diaphragm metering pump according to claim 1 or 2, wherein: and a pipe joint is arranged at one end of the outlet valve body, which is far away from the outlet end, and the pipe joint is sleeved on the outlet valve body and is in threaded fit with the outlet valve body.
4. The diaphragm metering pump of claim 3, wherein: and a third sealing ring is pressed at the joint of the pipe joint and the outlet valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062746.5U CN214577563U (en) | 2020-12-17 | 2020-12-17 | Diaphragm type metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062746.5U CN214577563U (en) | 2020-12-17 | 2020-12-17 | Diaphragm type metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214577563U true CN214577563U (en) | 2021-11-02 |
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ID=78365028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023062746.5U Active CN214577563U (en) | 2020-12-17 | 2020-12-17 | Diaphragm type metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214577563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263708A (en) * | 2022-07-13 | 2022-11-01 | 德帕姆(杭州)泵业科技有限公司 | Metering pump for high-performance micro-conveying |
-
2020
- 2020-12-17 CN CN202023062746.5U patent/CN214577563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263708A (en) * | 2022-07-13 | 2022-11-01 | 德帕姆(杭州)泵业科技有限公司 | Metering pump for high-performance micro-conveying |
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