CN209976956U - Multifunctional oil replenishing valve for diaphragm pump - Google Patents
Multifunctional oil replenishing valve for diaphragm pump Download PDFInfo
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- CN209976956U CN209976956U CN201920925933.XU CN201920925933U CN209976956U CN 209976956 U CN209976956 U CN 209976956U CN 201920925933 U CN201920925933 U CN 201920925933U CN 209976956 U CN209976956 U CN 209976956U
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Abstract
The utility model discloses a multi-functional fuel feeding valve for diaphragm pump, connect including valve body, disk seat and oil feed, be equipped with disk seat step hole on the valve body, the disk seat is installed at disk seat step downtheholely, is equipped with the three passageway that communicates mutually through inside cavity on the disk seat, and the ejector pin upper end stretches into in the oil feed passageway and is formed with the oil clearance, crosses the oil clearance and communicates with the passageway that produces oil all the time, and the disk seat is worn out to the ejector pin lower extreme. A rotatable lever is arranged on the valve body, one end of the lever is used for contacting with the membrane guide rod, and the other end of the lever is abutted against the lower end of the ejector rod; an oil cavity formed by the small holes of the step hole of the valve seat is communicated with the oil inlet joint through the oil hole. A spring A and a valve ball A are arranged in the oil cavity, and the valve ball A is used for closing the opening part of the oil inlet channel of the valve seat; the upper end of the mandril is abutted against the valve ball nail. The oil supplementing valve can be used for automatically supplementing oil to the hydraulic oil cavity of the diaphragm pump, can also be manually intervened to supplement oil frequently, meets the requirement of short-time special working conditions, and can also be used for online adjustment of the pressure relief oil quantity.
Description
Technical Field
The utility model relates to a diaphragm pump, concretely relates to multi-functional fuel feeding valve for diaphragm pump.
Background
A diaphragm pump is an important type of pump, and is a volumetric pump in which the volume of a conveying medium side is changed by the reciprocating deformation of a diaphragm, thereby achieving the suction and discharge of a conveyed medium. In industrial production, diaphragm pumps are mainly used for conveying corrosive liquids or solidsSuspended matterThe liquid of (2). The deformation (i.e. deflection or position) of the diaphragm needs to be effectively controlled, otherwise, the diaphragm can be excessively stretched to cause damage, and the normal use of the product is affected. The deformation of the diaphragm is mainly controlled by an oil supply and discharge mechanism. When the diaphragm moves to a set position towards the hydraulic oil side, the diaphragm guide rod triggers the slide valve to open, the hydraulic oil side pressure is reduced to a certain degree along with the continuous movement of the diaphragm, the automatic oil supplementing function is realized, and the deformation of the diaphragm on the hydraulic oil side is controlled.
Fig. 1 shows a conventional mechanical automatic oil supply valve for a diaphragm pump, wherein a gap between slide valves is only 0.03-0.05 mm because the gap has a sealing function, and if hydraulic oil contains a small amount of slurry, the slide valves are easily blocked, so that oil supply failure is caused, and thus the oil supply valve has a high requirement on the quality of the hydraulic oil. In addition, if the leakage amount of the piston seal or the like is large, the valve is supplied with oil only for a small portion of the suction stroke, and the oil supply amount may be insufficient.
Disclosure of Invention
The above-mentioned not enough to prior art exists, the utility model aims at providing a multi-functional fuel feeding valve for diaphragm pump, this fuel feeding valve can carry out automatic fuel feeding to diaphragm pump hydraulic pressure oil pocket, also can artificial intervention, carries out often the fuel feeding, satisfies the special operating mode demand of short-term, still can carry out the on-line adjustment to the pressure release oil mass, and this fuel feeding valve can reduce the hydraulic oil quality requirement simultaneously.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a multifunctional oil supplementing valve for a diaphragm pump comprises a valve body, a valve seat and an oil inlet joint, wherein the oil inlet joint is provided with an oil inlet hole with two through ends, the oil inlet joint is arranged above the valve body through a vertical channel on the valve body, a valve ball B and a spring B are arranged in a channel below the oil inlet joint, the spring B provides upward thrust for the valve ball B so that the valve ball B can timely close an oil outlet of the oil inlet joint, and the oil outlet of the oil inlet joint can be opened under the pressure of oil inlet; the method is characterized in that: the valve body is provided with a valve seat stepped hole with a downward large hole, the valve seat is arranged in the large hole of the valve seat stepped hole and is fixed with the valve body through a fixing piece, three channels which are mutually communicated through an internal cavity are arranged on the valve seat, wherein a channel with an opening positioned below the cavity is a mandril guide channel, a channel with an opening positioned above the cavity is an oil inlet channel, a channel with an opening positioned on the side surface of the cavity is an oil outlet channel, the oil outlet channel is communicated with a hydraulic cavity, a mandril is arranged in the mandril guide channel, the upper end of the mandril extends into the oil inlet channel and forms an oil passing gap with the wall of the oil inlet channel, the oil passing gap is always communicated with the oil outlet channel; an L-shaped lever which can rotate around a pin shaft is arranged on the valve body through the pin shaft, and the pin shaft is arranged at the corner of the lever; one end of the lever is used for contacting with the membrane guide rod, and the other end of the lever is always abutted against the lower end of the ejector rod;
the small hole of the step hole of the valve seat forms an oil cavity, and the oil cavity is communicated with a channel where the valve ball B is located through an oil supplementing connecting hole; a spring A and a valve ball A are arranged in the oil cavity, and the valve ball A closes the oil inlet channel opening of the valve seat under the combined action of the gravity of the valve ball A and the downward thrust of the spring A; the upper end of the ejector rod is abutted against the valve ball A; when the diaphragm guide rod pushes the lever to rotate, the other end of the lever pushes the ejector rod to move upwards, and the upper end of the ejector rod overcomes the action of the gravity of the spring A and the valve ball A to push the valve ball A upwards to be away from the opening part of the oil inlet channel of the valve seat.
A common oil supplementing screw hole for mounting a common oil supplementing screw is arranged on the valve body, and the common oil supplementing screw is mounted on the valve body through the common oil supplementing screw hole; a normal oil supplementing hole is arranged on the valve body, one end of the normal oil supplementing hole is communicated with the normal oil supplementing screw hole, and the other end of the normal oil supplementing hole is communicated with the hydraulic cavity; the front end of the normal oil supplementing screw is in a pointed cone shape, the pointed cone at the front end of the normal oil supplementing screw is inserted into the normal oil supplementing hole, and the normal oil supplementing hole can be opened or closed by screwing the normal oil supplementing screw; when the normal oil supplementing hole is closed by the pointed cone at the front end of the normal oil supplementing screw, part of the pointed cone at the front end of the normal oil supplementing screw is still positioned in the normal oil supplementing screw hole and forms a gap with the hole wall of the normal oil supplementing screw hole, and the channel where the valve ball B is positioned is communicated with the gap in the normal oil supplementing screw hole from the front position of the side surface of the normal oil supplementing screw hole through the normal oil supplementing connecting hole.
The valve body is provided with a drainage connector threaded hole for installing a drainage connector and a drainage screw hole for installing a drainage screw, and the drainage connector and the drainage screw are respectively installed on the valve body through the drainage connector threaded hole and the drainage screw hole; the first oil drainage hole communicated with the channel where the valve ball B is located is arranged right ahead of the oil drainage screw hole in the valve body, the front end of the oil drainage screw is in a pointed conical shape, a pointed cone at the front end of the oil drainage screw is inserted into the first oil drainage hole, the corresponding end of the first oil drainage hole can be opened or closed by screwing the oil drainage screw, the pointed cone at the front end of the oil drainage screw enables the first oil drainage hole to be closed, part of the pointed cone at the front end of the oil drainage screw is still located in the oil drainage screw hole and forms a gap with the wall of the oil drainage screw hole, and the front end of the oil drainage joint screw hole is communicated with the gap in the oil drainage screw hole from the front position of the side face of the oil drainage screw hole through the second oil drainage.
A stepped hole which is communicated up and down is arranged in the oil drainage joint, a large stepped hole is positioned below and communicated with the second oil drainage hole, a cylinder and a set screw are arranged in the large stepped hole, and the set screw is screwed in the large stepped hole and tightly presses the cylinder to the bottom of the large stepped hole; the axial line of the set screw is provided with a set screw oil passing hole which runs through two ends of the cylinder, two end faces of the cylinder are respectively provided with radial oil grooves, and the radial oil grooves on the two end faces are communicated through the axial oil grooves on the circumferential surface of the cylinder; the oil passing hole of the set screw is communicated with the radial oil groove of the adjacent cylindrical end surface.
The axis of the oil drainage screw hole and the axis of the oil drainage joint screw hole are positioned on the same vertical surface and are vertical to each other.
The contact part of the lever and the diaphragm guide rod is convex relative to the periphery of the contact part, so that the lever and the diaphragm guide rod can be reliably contacted.
The diameter of the part of the upper end of the push rod extending into the oil inlet channel is smaller than that of the part of the upper end of the push rod in the guide channel of the push rod.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. can realize the automatic oil supplementing function: when the pump sucks liquid, if the hydraulic oil quantity is insufficient, the diaphragm guide rod touches one end of the lever, the lever rotates around the pin shaft, the other end of the lever touches the ejector rod, the upper end of the ejector rod pushes the valve ball A, and the oil inlet channel of the valve seat is opened; when the pressure difference between the oil supplementing pipe and the hydraulic oil cavity is enough to overcome the resistance of the spring B, the valve ball B is pushed downwards, the oil outlet of the oil inlet joint is opened, hydraulic oil enters the hydraulic cavity through the oil hole E and the oil outlet channel on the valve seat, and automatic oil supplementing is achieved.
2. When the normal oil supplementing screw is loosened, the normal oil supplementing hole is opened, normal oil supplementing of the whole suction stroke can be achieved, and the special working condition that the leakage amount is too large, but the pump cannot be stopped for maintenance is met.
3. For avoiding the oil pocket to form airtight cavity, it is great to cause the resistance of back-opening valve ball first, and this oil supplementing valve has set up the draining joint, loosens the draining screw, and first draining hole is opened, and pressure oil loops through first draining hole, draining screw hole, second draining hole and gets into the corresponding passageway on holding screw and the cylinder, and the export is discharged from the draining joint at last, realizes the pressure release. And the oil drainage screw is closed, the oil drainage connector can be taken out on line, the size of the oil groove is adjusted, and the pressure relief oil quantity is adjusted.
4. The ejector rod in the oil replenishing valve only plays a role in transferring motion, and has no sealing requirement, so that a gap between the ejector rod and the ejector rod guide channel on the valve seat can be designed to be larger (more than or equal to 0.5mm), even if a small amount of slurry is contained in hydraulic oil, jamming is not easily caused, the working reliability is better, and the requirement on oil is also reduced.
Drawings
Fig. 1-structural schematic diagram of a mechanical automatic oil filling valve for a diaphragm pump in the prior art.
Fig. 2-the utility model discloses multifunctional oil replenishing valve for diaphragm pump structure sketch map.
The uppermost arrow in the two figures represents the direction of oil replenishment, and the lower double arrow represents the direction of movement of the diaphragm guide.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 2, can see from the figure, the utility model discloses multi-functional fuel filling valve for diaphragm pump, including valve body 1, disk seat 2 and oil feed joint 3, the oil feed connects and is equipped with the inlet port 4 that both ends link up on 3, and the oil feed connects 3 and installs in 1 top of valve body through the vertical passageway on the valve body, is equipped with valve ball second 5 and spring second 6 in the passageway of oil feed joint 3 below, and spring second 6 provides ascending thrust of valve ball second 5 so that valve ball second 5 closes the oil-out that the oil feed connects, and the oil-out that the oil feed connects can be opened under oil feed pressure. The valve body 1 is provided with a valve seat stepped hole with a downward large hole, and the valve seat 2 is arranged in the large hole of the valve seat stepped hole and is fixed with the valve body 1 through a fixing piece. The valve seat 2 is provided with three channels which are mutually communicated through an internal cavity, wherein the channel with an opening positioned below the cavity is a mandril guide channel, the channel with an opening positioned above the cavity is an oil inlet channel 7, the channel with an opening positioned on the side surface of the cavity is an oil outlet channel 8, the oil outlet channel 8 is communicated with a hydraulic cavity, a mandril 24 is arranged in the mandril guide channel, the upper end of the mandril 24 extends into the oil inlet channel 7 and forms an oil passing gap with the oil inlet channel wall, the oil passing gap is always communicated with the oil outlet channel through the internal cavity of the valve seat, and the lower end of the mandril 24 downwards penetrates out of; an L-shaped lever 9 which can rotate around a pin shaft is arranged on the valve body 1 through the pin shaft, and the pin shaft is arranged at the corner of the lever; one end of the lever 9 is used for contacting with the membrane guide rod 10, and the other end of the lever 9 is always abutted with the lower end of the ejector rod 24.
During actual design, the oil outlet channels on the valve seat are 4-6 which are uniformly arranged in the circumferential direction, so that even if part of the oil outlet channels are shielded by the valve body during installation to influence the communication with the hydraulic cavity, at least one of the oil outlet channels can be ensured to be communicated with the hydraulic cavity, the direction of the oil outlet channels does not need to be adjusted deliberately during installation, the installation is more convenient, oil supplement is not influenced, and the work is more reliable.
The small hole of the valve seat step hole forms an oil cavity 11, and the oil cavity 11 is communicated with a channel where the valve ball B is located through an oil supplementing connecting hole 12; a spring armor 13 and a valve ball armor 14 are arranged in the oil cavity 11, and the valve ball armor 14 closes the opening part of the oil inlet channel 7 of the valve seat by the valve ball armor 14 under the combined action of the self gravity and the downward thrust of the spring armor 13; the upper end of the mandril 24 is abutted against the valve ball nail 14; when the diaphragm guide rod 10 pushes the lever 9 to rotate, the other end of the lever 9 pushes the ejector rod 24 to move upwards, and the upper end of the ejector rod 24 overcomes the action of the gravity of the spring armor 13 and the valve ball armor 14 to push the valve ball armor 14 upwards to be away from the opening part of the valve seat oil inlet channel 7.
After the structure is improved, the ejector rod 24 in the oil replenishing valve only plays a role in transferring motion, and has no sealing requirement, so that a gap between the ejector rod and the ejector rod guide channel on the valve seat can be designed to be larger (more than or equal to 0.5mm), even if a small amount of slurry is contained in hydraulic oil, jamming is not easily caused, the working reliability is better, and meanwhile, the requirement on oil is also reduced.
In order to deal with the special working condition that the leakage amount is overlarge but the pump can not be stopped for maintenance, the oil replenishing valve is provided with a normal oil replenishing screw hole for mounting a normal oil replenishing screw on a valve body 1, and a normal oil replenishing screw 15 is mounted on the valve body 1 through the normal oil replenishing screw hole; a normal oil supplementing hole 16 is also arranged right in front of the normal oil supplementing screw hole on the valve body 1, one end of the normal oil supplementing hole is communicated with the normal oil supplementing screw hole, and the other end of the normal oil supplementing hole is communicated with the hydraulic cavity; the front end of the normal oil supplementing screw 15 is in a pointed cone shape, the pointed cone at the front end of the normal oil supplementing screw is inserted into the normal oil supplementing hole 16, and the corresponding end of the normal oil supplementing hole 16 can be opened or closed by screwing the normal oil supplementing screw 15; when the normal oil supplementing hole is closed by the pointed cone at the front end of the normal oil supplementing screw, part of the pointed cone at the front end of the normal oil supplementing screw is still positioned in the normal oil supplementing screw hole and forms a gap with the hole wall of the normal oil supplementing screw hole, and a channel where the valve ball B is positioned is communicated with the gap in the normal oil supplementing screw hole from the front position of the side surface of the normal oil supplementing screw hole through the normal oil supplementing connecting hole 17. When the normal oil supplementing screw 15 is loosened, the normal oil supplementing hole 16 is opened, normal oil supplementing of the whole suction stroke can be achieved, and the special working condition that the leakage amount is too large, but the pump cannot be stopped for maintenance is met.
In order to avoid that the oil cavity 11 forms a closed cavity and the resistance for jacking the valve ball nail 14 is larger, the oil compensating valve is provided with an oil drainage joint threaded hole for installing an oil drainage joint and an oil drainage screw hole for installing an oil drainage screw on the valve body 1, and the oil drainage joint 18 and the oil drainage screw 19 are respectively installed on the valve body 1 through the oil drainage joint threaded hole and the oil drainage screw hole; the first oil drainage hole 20 communicated with a channel where the valve ball B is located is arranged right ahead of the oil drainage screw hole on the valve body 1, the front end of an oil drainage screw 19 is in a sharp cone shape, a sharp cone at the front end of the oil drainage screw is inserted into the first oil drainage hole 20, the end corresponding to the first oil drainage hole 20 can be opened or closed by screwing the oil drainage screw 19, the sharp cone at the front end of the oil drainage screw enables the first oil drainage hole to be closed, part of the sharp cone at the front end of the oil drainage screw is still located in the oil drainage screw hole and forms a gap with the wall of the oil drainage screw hole, and the front end of the oil drainage joint screw hole is communicated with the gap in the oil drainage screw hole from the side of the oil drainage screw hole to the front position through the second oil drainage hole 21. When needing to let out oil, loosen draining screw 19, first draining hole 20 is opened, and pressure oil loops through first draining hole 20, draining screw hole, second draining hole 21 and gets into the corresponding passageway on draining joint 18, discharges from draining joint 18 exit at last, realizes the pressure release.
In order to conveniently adjust the size of the oil drainage quantity and solve the problem of blockage, a step hole which is communicated up and down is arranged in the oil drainage connector 18, a large hole of the step hole is positioned below and communicated with the second oil drainage hole 21, a cylinder 22 and a set screw 23 are arranged in the large hole of the step hole, and the set screw 23 is screwed in the large hole of the step hole in a threaded manner and tightly presses the cylinder 22 to the bottom of the large hole of the step hole; the axial line of the set screw 23 is provided with a set screw oil passing hole which runs through two ends, two end faces of the cylinder 22 are respectively provided with radial oil grooves, and the radial oil grooves on the two end faces are communicated through axial oil grooves on the circumferential surface of the cylinder; the oil hole is crossed to holding screw and is linked together with the radial oil groove of adjacent cylinder terminal surface, and the radial oil groove of another terminal surface of cylinder and the draining passageway intercommunication in the draining joint main part. Because the main purpose of draining connects is to prevent the breathing out, avoids the oil pocket to form airtight cavity, causes the resistance of back-opening valve ball first great, so in the operation of actual draining, only need have very little draining passageway can, if the draining passageway is too big, influence normal oil supplementation on the contrary. If set up the axial oil groove at the center, then hardly process the aperture that needs are little, in view of this, the utility model discloses set up the axial oil groove on cylindrical periphery, very little that this axial oil groove can design, the radial oil groove intercommunication of rethread both ends face can. In addition, in actual use, the passageway in the draining joint may be blocked up or the passageway grow and not conform to the pressure release requirement under the washing of pressure oil, can close the draining screw under this condition, takes out the draining joint on line and handles. If there is the jam, open the mediation with corresponding passageway can, if the passageway grow under the washing of pressure oil, be the oil groove grow on the cylinder usually, a new cylinder can be changed to this kind of condition to the adjustment oil groove size realizes adjusting as required of pressure release oil mass.
Further, the axis where the oil drainage screw hole is located and the axis where the oil drainage joint screw hole is located are located on the same vertical surface and are perpendicular to each other, so that the communication between the oil drainage screw hole and the oil drainage joint screw hole is facilitated, and the second oil drainage hole is convenient and easy to process because the second oil drainage hole which is communicated with the oil drainage joint screw hole can be a straight hole coaxial with the oil drainage joint screw hole.
Because the lever rotates, the contact part of the lever and the diaphragm guide rod is raised relative to the periphery of the contact part, so that the lever still keeps reliable contact with the diaphragm guide rod in the rotating process. In order to form the protruding structure, during actual processing, parts are respectively processed on the upper side and the lower side of the contact part, so that the contact part naturally protrudes relative to the periphery, and the processing is more convenient.
The diameter of the part of the upper end of the push rod extending into the oil inlet channel is smaller than that of the part of the upper end of the push rod in the guide channel of the push rod. Therefore, the adaptability of the ejector rod is changed, the processing requirement on the valve seat can be reduced, and the ejector rod is convenient to process and is favorable for pushing the valve ball armor.
The utility model can automatically supplement oil to the hydraulic oil cavity of the diaphragm pump; and manual intervention can be performed to supplement oil frequently, the requirement of short-time special working conditions is met, and the pressure relief oil quantity can be adjusted on line. The valve mechanism is novel in structure, strong in practicability and convenient to operate.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. A multifunctional oil supplementing valve for a diaphragm pump comprises a valve body, a valve seat and an oil inlet joint, wherein the oil inlet joint is provided with an oil inlet hole with two through ends, the oil inlet joint is arranged above the valve body through a vertical channel on the valve body, a valve ball B and a spring B are arranged in a channel below the oil inlet joint, the spring B provides upward thrust for the valve ball B so that the valve ball B can timely close an oil outlet of the oil inlet joint, and the oil outlet of the oil inlet joint can be opened under the pressure of oil inlet; the method is characterized in that: the valve body is provided with a valve seat stepped hole with a downward large hole, the valve seat is arranged in the large hole of the valve seat stepped hole and is fixed with the valve body through a fixing piece, three channels which are mutually communicated through an internal cavity are arranged on the valve seat, wherein a channel with an opening positioned below the cavity is a mandril guide channel, a channel with an opening positioned above the cavity is an oil inlet channel, a channel with an opening positioned on the side surface of the cavity is an oil outlet channel, the oil outlet channel is communicated with a hydraulic cavity, a mandril is arranged in the mandril guide channel, the upper end of the mandril extends into the oil inlet channel and forms an oil passing gap with the wall of the oil inlet channel, the oil passing gap is always communicated with the oil outlet channel; an L-shaped lever which can rotate around a pin shaft is arranged on the valve body through the pin shaft, and the pin shaft is arranged at the corner of the lever; one end of the lever is used for contacting with the membrane guide rod, and the other end of the lever is always abutted against the lower end of the ejector rod;
the small hole of the step hole of the valve seat forms an oil cavity, and the oil cavity is communicated with a channel where the valve ball B is located through an oil supplementing connecting hole; a spring A and a valve ball A are arranged in the oil cavity, and the valve ball A closes the oil inlet channel opening of the valve seat under the combined action of the gravity of the valve ball A and the downward thrust of the spring A; the upper end of the ejector rod is abutted against the valve ball A; when the diaphragm guide rod pushes the lever to rotate, the other end of the lever pushes the ejector rod to move upwards, and the upper end of the ejector rod overcomes the action of the gravity of the spring A and the valve ball A to push the valve ball A upwards to be away from the opening part of the oil inlet channel of the valve seat.
2. The multi-functional oil replenishing valve for a diaphragm pump according to claim 1, characterized in that: a common oil supplementing screw hole for mounting a common oil supplementing screw is arranged on the valve body, and the common oil supplementing screw is mounted on the valve body through the common oil supplementing screw hole; a normal oil supplementing hole is arranged on the valve body, one end of the normal oil supplementing hole is communicated with the normal oil supplementing screw hole, and the other end of the normal oil supplementing hole is communicated with the hydraulic cavity; the front end of the normal oil supplementing screw is in a pointed cone shape, the pointed cone at the front end of the normal oil supplementing screw is inserted into the normal oil supplementing hole, and the normal oil supplementing hole can be opened or closed by screwing the normal oil supplementing screw; when the normal oil supplementing hole is closed by the pointed cone at the front end of the normal oil supplementing screw, part of the pointed cone at the front end of the normal oil supplementing screw is still positioned in the normal oil supplementing screw hole and forms a gap with the hole wall of the normal oil supplementing screw hole, and the channel where the valve ball B is positioned is communicated with the gap in the normal oil supplementing screw hole from the front position of the side surface of the normal oil supplementing screw hole through the normal oil supplementing connecting hole.
3. The multi-functional oil replenishing valve for a diaphragm pump according to claim 1, characterized in that: the valve body is provided with a drainage connector threaded hole for installing a drainage connector and a drainage screw hole for installing a drainage screw, and the drainage connector and the drainage screw are respectively installed on the valve body through the drainage connector threaded hole and the drainage screw hole; the first oil drainage hole communicated with the channel where the valve ball B is located is arranged right ahead of the oil drainage screw hole in the valve body, the front end of the oil drainage screw is in a pointed conical shape, a pointed cone at the front end of the oil drainage screw is inserted into the first oil drainage hole, the corresponding end of the first oil drainage hole can be opened or closed by screwing the oil drainage screw, the pointed cone at the front end of the oil drainage screw enables the first oil drainage hole to be closed, part of the pointed cone at the front end of the oil drainage screw is still located in the oil drainage screw hole and forms a gap with the wall of the oil drainage screw hole, and the front end of the oil drainage joint screw hole is communicated with the gap in the oil drainage screw hole from the front position of the side face of the oil drainage screw hole through the second oil drainage.
4. The multi-functional oil replenishing valve for a diaphragm pump according to claim 3, characterized in that: a stepped hole which is communicated up and down is arranged in the oil drainage joint, a large stepped hole is positioned below and communicated with the second oil drainage hole, a cylinder and a set screw are arranged in the large stepped hole, and the set screw is screwed in the large stepped hole and tightly presses the cylinder to the bottom of the large stepped hole; the axial line of the set screw is provided with a set screw oil passing hole which runs through two ends of the cylinder, two end faces of the cylinder are respectively provided with radial oil grooves, and the radial oil grooves on the two end faces are communicated through the axial oil grooves on the circumferential surface of the cylinder; the oil passing hole of the set screw is communicated with the radial oil groove of the adjacent cylindrical end surface.
5. The multi-functional oil replenishing valve for a diaphragm pump according to claim 3, characterized in that: the axis of the oil drainage screw hole and the axis of the oil drainage joint screw hole are positioned on the same vertical surface and are vertical to each other.
6. The multi-functional oil replenishing valve for a diaphragm pump according to claim 1, characterized in that: the contact part of the lever and the diaphragm guide rod is convex relative to the periphery of the contact part, so that the lever and the diaphragm guide rod can be reliably contacted.
7. The multi-functional oil replenishing valve for a diaphragm pump according to claim 1, characterized in that: the diameter of the part of the upper end of the push rod extending into the oil inlet channel is smaller than that of the part of the upper end of the push rod in the guide channel of the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920925933.XU CN209976956U (en) | 2019-06-19 | 2019-06-19 | Multifunctional oil replenishing valve for diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920925933.XU CN209976956U (en) | 2019-06-19 | 2019-06-19 | Multifunctional oil replenishing valve for diaphragm pump |
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| Publication Number | Publication Date |
|---|---|
| CN209976956U true CN209976956U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920925933.XU Active CN209976956U (en) | 2019-06-19 | 2019-06-19 | Multifunctional oil replenishing valve for diaphragm pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131231A (en) * | 2019-06-19 | 2019-08-16 | 重庆水泵厂有限责任公司 | The multi-functional Fill valve of diaphragm pump |
| CN115163467A (en) * | 2022-07-28 | 2022-10-11 | 德帕姆(杭州)泵业科技有限公司 | Reciprocating pump capable of supplementing oil in time |
-
2019
- 2019-06-19 CN CN201920925933.XU patent/CN209976956U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131231A (en) * | 2019-06-19 | 2019-08-16 | 重庆水泵厂有限责任公司 | The multi-functional Fill valve of diaphragm pump |
| CN110131231B (en) * | 2019-06-19 | 2024-01-19 | 重庆水泵厂有限责任公司 | Multifunctional oil supplementing valve for diaphragm pump |
| CN115163467A (en) * | 2022-07-28 | 2022-10-11 | 德帕姆(杭州)泵业科技有限公司 | Reciprocating pump capable of supplementing oil in time |
| CN115163467B (en) * | 2022-07-28 | 2023-12-29 | 德帕姆(杭州)泵业科技有限公司 | Reciprocating pump capable of timely supplementing oil |
| WO2024021446A1 (en) * | 2022-07-28 | 2024-02-01 | 德帕姆(杭州)泵业科技有限公司 | Reciprocating pump capable of timely replenishing oil |
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