CN218717925U - Hydraulic cavity exhaust valve of hydraulic diaphragm metering pump - Google Patents
Hydraulic cavity exhaust valve of hydraulic diaphragm metering pump Download PDFInfo
- Publication number
- CN218717925U CN218717925U CN202121835654.8U CN202121835654U CN218717925U CN 218717925 U CN218717925 U CN 218717925U CN 202121835654 U CN202121835654 U CN 202121835654U CN 218717925 U CN218717925 U CN 218717925U
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- valve body
- flow guide
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a hydraulic pressure chamber discharge valve of hydraulic pressure diaphragm measuring pump. The valve comprises a valve body, a valve core, a valve ball and a waterproof ventilation cover, and is characterized in that the valve body is divided into an upper cavity and a lower cavity which are communicated, a locking screw, an adjusting pad, the valve core and a spring are sequentially arranged in the lower cavity from bottom to top in a matched manner, the valve ball is arranged in the upper cavity in a matched manner, and the waterproof ventilation cover is arranged at the top of the valve body in a matched manner. The utility model discloses install on the periphery of the pump body and at the upside in hydraulic pressure chamber, solve the gas emission in hydraulic pressure chamber, improve diaphragm life, guarantee the safe operation of hydraulic pressure diaphragm measuring pump.
Description
Technical Field
The utility model relates to a hydraulic pressure chamber discharge valve of hydraulic pressure diaphragm measuring pump.
Background
The two sides of the diaphragm of the hydraulic diaphragm metering pump are respectively provided with a hydraulic cavity and a medium cavity. The hydraulic diaphragm metering pump applies work in the hydraulic cylinder by means of power of reciprocating motion of the plunger, and the work is transmitted to the diaphragm through hydraulic oil in the hydraulic cylinder to promote the diaphragm to perform deflection displacement in the diaphragm cavity (the hydraulic cavity and the medium cavity) so as to convey a medium. The reciprocating motion of the plunger makes the plunger and the diaphragm alternatively extrude the hydraulic oil in the hydraulic cavity to generate small gas, so that the more the gas is accumulated on the upper side of the hydraulic cavity, the damage of the diaphragm can be caused, and the safe operation of the hydraulic diaphragm metering pump is influenced.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a hydraulic pressure chamber discharge valve's of hydraulic pressure diaphragm measuring pump technical scheme.
The hydraulic cavity exhaust valve of the hydraulic diaphragm metering pump comprises a valve body, a valve core, a valve ball and a waterproof ventilation cover and is characterized in that the valve body is divided into an upper cavity and a lower cavity which are communicated, a locking screw, an adjusting pad, the valve core and a spring are sequentially arranged in the lower cavity from bottom to top in a matched mode, the valve ball is arranged in the upper cavity in a matched mode, and the waterproof ventilation cover is arranged at the top of the valve body in a matched mode.
The hydraulic cavity exhaust valve of the hydraulic diaphragm metering pump is characterized in that a circular truncated cone is arranged at the lower part of the valve core, a gap is formed between the circumference of the circular truncated cone and the valve body, the upper part of the valve core is in sealing fit with the valve body, and the upper surface of the circular truncated cone and the valve body form a sealing surface; the spring is arranged on the upper part of the valve core and is in contact fit with the valve body.
The hydraulic cavity exhaust valve of the hydraulic diaphragm metering pump is characterized in that through holes are formed in the middle of the locking screw and the middle of the adjusting pad and communicated with the locking screw and the middle of the adjusting pad, a vertical first flow guide hole and a horizontal second flow guide hole are formed in the circular table of the valve core, the first flow guide hole is communicated with the second flow guide hole and the through hole of the adjusting pad, a horizontal third flow guide hole and a vertical fourth flow guide hole are formed in the upper portion of the valve core, and the fourth flow guide hole is communicated with the third flow guide hole and the lower cavity.
The hydraulic cavity exhaust valve of the hydraulic diaphragm metering pump is characterized in that the valve ball is arranged below the upper cavity body to realize linear sealing.
The hydraulic cavity exhaust valve of the hydraulic diaphragm metering pump is characterized in that the waterproof air-permeable cover is provided with a vertical waterproof air hole and a horizontal waterproof air hole, the vertical waterproof air hole is communicated with the upper cavity and the horizontal waterproof air hole, and the horizontal waterproof air hole is communicated with the atmosphere.
The hydraulic cavity exhaust valve of the hydraulic diaphragm metering pump is characterized in that external threads are arranged on the lower portion of the valve body, and the valve body is in threaded connection with the metering pump through the external threads.
The utility model discloses install on the periphery of the pump body and at the upside in hydraulic pressure chamber, solve the gas emission in hydraulic pressure chamber, improve diaphragm life, guarantee the safe operation of hydraulic pressure diaphragm measuring pump. When the hydraulic diaphragm metering pump discharges liquid, namely when the plunger moves towards the diaphragm direction, pressurized hydraulic oil in the hydraulic cavity jacks up the valve core through the inner hexagonal through hole in the middle of the locking screw, so that the sealing surface of the valve core is tightly attached to the sealing surface of the valve body, namely the air-permeable seam is closed, a hydraulic oil outflow channel is blocked, the tightness of the hydraulic cavity is ensured, and the generated gas is gathered in a space at the lower end of the valve core again through the upper side of the hydraulic cavity; when the hydraulic diaphragm metering pump is in liquid absorption, namely when the plunger moves away from the diaphragm direction, the volume of the hydraulic cavity is increased, the pressure is reduced, the valve core is opened under the action of the spring, so that an air-permeable seam is formed, at the moment, air gathered in the space at the lower end of the valve core pushes the valve ball through the first flow guide hole, the second flow guide hole, the air-permeable seam, the third flow guide hole and the fourth flow guide hole in sequence, the air is rapidly discharged out of the pump through the waterproof air holes in the waterproof air-permeable cover, and the valve ball is rapidly reset after the air is emptied, so that the tightness of the hydraulic cavity after the air is discharged is ensured; therefore, the gas discharge of the hydraulic cavity is solved, the service life of the diaphragm is prolonged, and the safe operation of the hydraulic diaphragm metering pump is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a valve cartridge;
FIG. 3 is a schematic view of a valve body;
in the figure: 1-waterproof breathable cover; 2-a valve ball; 3-a valve body; 4-a spring; 5-a valve core; 6-adjusting the cushion; 7-locking screws; 8-air permeable seam; 9-waterproof air holes; 10-a fourth diversion hole; 11-a third flow guide hole; 12-a sealing face; 13-second flow guiding holes; 14-a first flow guide hole; 15-seal line, 16-gap.
Detailed Description
The invention will be further explained with reference to the drawings in the following description:
the utility model provides a hydraulic pressure chamber discharge valve of hydraulic pressure diaphragm measuring pump, includes valve body 3, case 5, valve ball 2 and waterproof ventilative cover 1, and the valve body divide into the last cavity and the lower cavity of intercommunication, and the internal cooperation of lower cavity sets up locking screw 7, adjusting pad 6, case 5 and spring 4 from bottom to top in proper order, goes up the internal cooperation of cavity and sets up valve ball 2, and waterproof ventilative cover 1 cooperation sets up at 3 tops of valve body.
The lower part of the valve core 5 is provided with a circular truncated cone, a gap 16 is arranged between the circumference of the circular truncated cone and the valve body for exhausting air, the upper part of the valve core runs in the valve body and is in sealing fit with the valve body, the upper surface of the circular truncated cone and the valve body form a sealing surface 12, an air-permeable seam 8 is used for ventilating when the valve core 5 moves downwards, and sealing is realized when the valve core 5 moves upwards and contacts with the valve body 3; the spring 4 is arranged on the upper part of the valve core and is in contact fit with the valve body, and the spring is used for resetting the valve core; through holes are formed in the middle parts of the locking screw 7 and the adjusting pad 6 and communicated with each other, a vertical first diversion hole 14 and a horizontal second diversion hole 13 are formed in the circular table of the valve core, the first diversion hole 14 is communicated with the second diversion hole 13 and the through hole of the adjusting pad, a horizontal third diversion hole 11 and a vertical fourth diversion hole 10 are formed in the upper part of the valve core, and the fourth diversion hole 10 is communicated with the third diversion hole 11 and the lower cavity; the valve ball 2 is arranged below the upper cavity to realize linear sealing through the self weight of the valve ball, the waterproof air-permeable cover 1 is provided with a vertical waterproof air hole and a transverse waterproof air hole, the vertical waterproof air hole is communicated with the upper cavity and the transverse waterproof air hole, and the transverse waterproof air hole is communicated with the atmosphere; the gas entering from the locking screw 7 is discharged through the first flow guide hole 14, the second flow guide hole 13, the gap 16 between the circumference of the circular truncated cone and the valve body, the third flow guide hole 11 and the fourth flow guide hole 10, and then the gas pushes the valve ball open and is discharged into the atmosphere through the vertical waterproof air holes and the transverse waterproof air holes.
The lower part of the valve body is provided with an external thread, and the valve body can be matched with the metering pump in a threaded manner through the external thread during installation.
The specific design and installation process is as follows:
the upper surface of the valve core 5 is matched and ground with the contact surface of the valve body 3, so that the sealing performance of the jointed sealing surface 12 is ensured; manufacturing a sealing line 15 on the valve body 3 by using a steel ball with the same specification as the valve ball 2; the relative size of the valve body 3 and the size of the ventilation seam 8 (namely the opening height of the valve core 5) are measured, and the thickness of the adjusting pad 6 is matched and ground.
The waterproof ventilation cover 1 is provided with a plurality of waterproof ventilation holes 9 which comprise vertical waterproof ventilation holes and transverse waterproof ventilation holes; a fourth flow guide hole 10, a third flow guide hole 11, a second flow guide hole 13 and a first flow guide hole 14 are formed in the valve core 5; an inner hexagonal through hole is formed in the middle of the locking screw 7 and used for installing the locking screw 7 and inlets of hydraulic oil and gas; the 3 lower extreme excircle processing external screw threads of valve body are used for installing on the pump body the utility model discloses a discharge valve.
A spring 4, a valve core 5 and an adjusting pad 6 are sequentially arranged in the valve body 3; then a locking screw 7 is screwed in to lock the adjusting pad 6, so that the size of an air-permeable seam 8 formed between the valve core 5 and the sealing surface of the valve body 3 in a free state, namely under the action of the spring 4, is ensured to be stable and unchanged; the valve ball 2 is placed into the valve body 3 to form a sealing line 15, so that the one-way flow of the discharged gas is ensured; then the waterproof ventilation cover 1 is screwed into the valve body 3 to play the protection role of waterproof ventilation.
When the hydraulic diaphragm metering pump discharges liquid, namely when the plunger moves towards the diaphragm direction, pressurized hydraulic oil in the hydraulic cavity jacks up the valve core 5 through the inner hexagonal through hole in the middle of the locking screw 7, so that the sealing surface of the valve core is tightly attached to the sealing surface of the valve body, namely the air-permeable seam 8 is closed, a hydraulic oil outflow channel is blocked, the tightness of the hydraulic cavity is ensured, and the generated gas is gathered in a space at the lower end of the valve core 5 through the upper side of the hydraulic cavity; when the hydraulic diaphragm metering pump is in liquid absorption, namely when the plunger moves away from the diaphragm direction, the volume of the hydraulic cavity is increased, the pressure is reduced, the valve core 5 is opened under the action of the spring 4, namely, the air-permeable seam 8 is formed, at the moment, air gathered in the space at the lower end of the valve core 5 sequentially passes through the first flow guide hole 14, the second flow guide hole 13, the air-permeable seam 8, the third flow guide hole 11 and the fourth flow guide hole 10 to jack the valve ball 2, and is rapidly discharged out of the pump through the waterproof air holes 9 on the waterproof air-permeable cover 1, and the valve ball 2 is rapidly reset after the air is emptied, so that the tightness of the hydraulic cavity after the air is discharged is ensured. Therefore, the gas emission of the hydraulic cavity is solved, the service life of the diaphragm is prolonged, and the safe operation of the hydraulic diaphragm metering pump is ensured.
Claims (6)
1. The utility model provides a hydraulic pressure chamber discharge valve of hydraulic pressure diaphragm measuring pump, includes valve body, case, valve ball and waterproof ventilative cover, its characterized in that the valve body divide into last cavity and the lower cavity of intercommunication, and the internal cooperation of lower cavity sets up locking screw, adjustment pad, case and spring from bottom to top in proper order, goes up the internal cooperation of cavity and sets up the valve ball, and the cooperation of waterproof ventilative cover sets up at the valve body top.
2. The exhaust valve for the hydraulic cavity of the hydraulic diaphragm metering pump according to claim 1, wherein a circular truncated cone is arranged at the lower part of the valve core, a gap is formed between the circumference of the circular truncated cone and the valve body, the upper part of the valve core is in sealing fit with the valve body, and the upper surface of the circular truncated cone forms a sealing surface with the valve body; the spring is arranged on the upper part of the valve core and is in contact fit with the valve body.
3. The exhaust valve for the hydraulic cavity of the hydraulic diaphragm metering pump according to claim 2, wherein the locking screw and the middle portion of the adjusting pad are both provided with a through hole and communicated with each other, the circular table of the valve core is provided with a vertical first flow guide hole and a horizontal second flow guide hole, the first flow guide hole is communicated with the second flow guide hole and the through hole of the adjusting pad, the upper portion of the valve core is provided with a horizontal third flow guide hole and a vertical fourth flow guide hole, and the fourth flow guide hole is communicated with the third flow guide hole and the lower cavity.
4. The exhaust valve for the hydraulic chamber of the hydraulic diaphragm metering pump according to claim 1, wherein the valve ball is arranged below the upper chamber body to realize line sealing.
5. The hydraulic chamber vent valve of a hydraulic diaphragm metering pump according to claim 3, wherein the waterproof vent cover is provided with a vertical waterproof vent hole and a horizontal waterproof vent hole, the vertical waterproof vent hole is communicated with the upper chamber and the horizontal waterproof vent hole, and the horizontal waterproof vent hole is communicated with the atmosphere.
6. The hydraulic chamber vent valve of a hydraulic diaphragm metering pump according to claim 1, wherein the lower portion of the valve body is provided with an external thread, and the valve body is in threaded engagement with the metering pump through the external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121835654.8U CN218717925U (en) | 2021-08-07 | 2021-08-07 | Hydraulic cavity exhaust valve of hydraulic diaphragm metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121835654.8U CN218717925U (en) | 2021-08-07 | 2021-08-07 | Hydraulic cavity exhaust valve of hydraulic diaphragm metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717925U true CN218717925U (en) | 2023-03-24 |
Family
ID=85582059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121835654.8U Active CN218717925U (en) | 2021-08-07 | 2021-08-07 | Hydraulic cavity exhaust valve of hydraulic diaphragm metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717925U (en) |
-
2021
- 2021-08-07 CN CN202121835654.8U patent/CN218717925U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107061810B (en) | Overflow type pressure reducing valve with minimum working pressure | |
| CN209586611U (en) | It takes out the liquid storing barrel cover assembly of liquid filler and takes out liquid filler | |
| CN207486150U (en) | Overloading protection apparatus pressure protection valve | |
| CN218717925U (en) | Hydraulic cavity exhaust valve of hydraulic diaphragm metering pump | |
| CN207485665U (en) | It is pumped for the pressure protection of Overloading protection apparatus | |
| CN201412559Y (en) | Mechanical valve | |
| CN211371392U (en) | Novel integrated multifunctional pressure reducing valve | |
| CN211371373U (en) | Automatic pressure-boosting and pressure-reducing air pressure control valve | |
| CN204729260U (en) | A kind of air compression plant be installed on air compressor | |
| CN213575768U (en) | Pressure-adjustable high-pressure limiting valve for common rail | |
| CN211474745U (en) | Bottom cover one-way inflation valve for single-tube shock absorber | |
| CN213117598U (en) | Special pressure relief device of oxygenerator | |
| CN207485764U (en) | For the air valve of Overloading protection apparatus | |
| CN112283421A (en) | Pressure-adjustable high-pressure limiting valve for common rail | |
| CN204729200U (en) | A kind of fuel pressure regulator | |
| CN210397278U (en) | Energy storage device | |
| CN201650668U (en) | Air compressor lifted type relief mechanism | |
| CN212643554U (en) | Pneumatic needle type stop valve | |
| CN210318683U (en) | Built-in air quantity regulating valve | |
| CN218845224U (en) | Vacuum valve with acoustic sensor | |
| CN216477639U (en) | Tight seat of delivery valve of auto-parts | |
| CN217463357U (en) | Two-way valve for fuel tank | |
| CN220645994U (en) | Mounting structure of plate type two-way lock | |
| CN215672472U (en) | Novel engine cylinder cover of fuel oil loop | |
| CN220082223U (en) | Pressure reducing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |