CN202500734U - Submerged reciprocating diaphragm type metering pump - Google Patents
Submerged reciprocating diaphragm type metering pump Download PDFInfo
- Publication number
- CN202500734U CN202500734U CN2012201360053U CN201220136005U CN202500734U CN 202500734 U CN202500734 U CN 202500734U CN 2012201360053 U CN2012201360053 U CN 2012201360053U CN 201220136005 U CN201220136005 U CN 201220136005U CN 202500734 U CN202500734 U CN 202500734U
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- pump head
- connecting rod
- liquid
- bar
- head device
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Abstract
The utility model discloses a submerged reciprocating diaphragm type metering pump. The metering pump comprises a stroke control mechanism, a connecting rod driving mechanism and a pump head device, wherein the stroke control mechanism and the connecting rod driving mechanism are arranged on the upper portion of a conveyed liquid, the pump head device is submerged in the conveyed liquid, a support pipe is arranged between the pump head device and the connecting rod driving mechanism for connecting the pump head device and the connecting rod driving mechanism, the pump head device comprises a filter screen, a suction inlet one-way valve, a diaphragm component, a discharge port one-way valve and a pump head connecting rod, the pump head connecting rod is sleeved in the support pipe, the connecting rod driving mechanism drives the pump head connecting rod to move in a reciprocating mode in the conveyed liquid, the suction inlet one-way valve is arranged between the filter screen and the diaphragm component, a liquid outlet pipe is arranged on a port of the discharge port one-way valve, and the liquid outlet pipe extends to the exterior of the conveyed liquid. The submerged reciprocating diaphragm type metering pump has the advantages that a difficult suction is prevented, the metering of the metering pump is accurate, and the absorption efficiency of the pump head device in the metering pump is improved.
Description
Technical field
The utility model relates to FLUID TRANSPORTATION and control measurement technical field, particularly relates to reciprocal diaphragm metering pump under a kind of liquid.
Background technique
In the existing technology, the mechanical driving part of metering pump and pump head part directly be linked together, therefore, pump head is positioned at installs the top, basis, user's pipeline need be guided to the pump head front, with the suction port of pump head install the basis above be connected.When being positioned at, user's storage tank the basis is installed when following; Liquid level in the storage tank is lower than the pump head suction port; The metering pump of existing technology often adopts the formula that sucts to install; The pump head setting height(from bottom) is positioned at the above user of liquid level just needs a long pipeline to be inserted into below the liquid level, and the negative pressure of when pump head is in suction stroke, leaning on pump head to produce is drawn into liquid in the pump head.Such setting height(from bottom) will be severely limited, and causes sucking very difficulty of liquid if suction head is crossed senior general, even can't work.
The model utility content
The technical problem that the utility model mainly solves provides reciprocal diaphragm metering pump under a kind of liquid, can make the metering pump metering more accurate, and improve the adsorption efficiency of pump head device in the metering pump.
For solving the problems of the technologies described above; The technological scheme that the utility model adopts is: reciprocal diaphragm metering pump under a kind of liquid is provided; Comprise: stroke controlling mechanism, bar-link drive and pump head device; Said stroke controlling mechanism and bar-link drive are arranged on the top of carrying liquid, and said pump head device is immersed in to be carried in the liquid, are provided with support tube between said pump head device and the bar-link drive and are connected; Said pump head device comprises and is provided with filter screen, suction port one-way valve, septum assembly, exhaust port one-way valve and pump head connecting rod; The pump head connecting rod is set in the support tube, and said bar-link drive drives the to-and-fro motion in carrying liquid of pump head connecting rod, and said suction one-way valve is arranged between filter screen and the septum assembly; The port of said exhaust port one-way valve is provided with a drain pipe, and said drain pipe extends to the outside of carrying liquid.
In preferred embodiment of the utility model, in stroke procedure, reach carrying the control of flow quantity for making bar-link drive more accurately, said stroke controlling mechanism is provided with the Flow-rate adjustment handle.
In preferred embodiment of the utility model; For satisfying the flow that can under non-stop-machine state, change metering pump in the production continuously; Said bar-link drive comprises frame, worm and gear transmission, skewed slot bent axle, end bracket enclosed, connecting rod and crosshead; Said skewed slot bent axle connection traffic regulating handle; Said worm and gear drive sleeve is loaded on the skewed slot bent axle, and in frame, said connecting rod is connected with the pump head connecting rod through crosshead said end bracket enclosed with worm and gear transmission and skewed slot crankshaft seal.
In preferred embodiment of the utility model; For guaranteeing that stroke controlling mechanism and bar-link drive are in the top of carrying liquid all the time; And the pump head device is in the conveying liquid all the time; And satisfy the annexation between bar-link drive and the pump head device, and the frame lower of said bar-link drive is provided with a mounting plate, and said pump head connecting rod and drain pipe wear respectively and are fixed in the mounting plate; Said support tube is fixed on the lower end of mounting plate, is provided with bellows between said pump head connecting rod and the mounting plate.
In preferred embodiment of the utility model, for considering the join domain of bar-link drive and pump head device, said bar-link drive is through the vertical mounting structure that is connected between support tube and the pump head device.
The beneficial effect of the utility model is: the pump head device of the utility model metering pump is immersed in below the liquid level, has solved pump head and has sucked difficult problem, makes the metering pump metering more accurate; And stroke controlling mechanism and bar-link drive are placed the liquid level top; Perhaps can be the top of container, can be ground also, makes between pump head device and the bar-link drive to be connected by support tube to move back and forth; When support tube falls short of; Can extend and set up intermediate bar and drive septum assembly to-and-fro motion under liquid, make the continuous proper functioning of pump head device, the characteristics of flow of fluid are intermittently and pulse.
Description of drawings
Fig. 1 is the easy structure schematic representation of reciprocal diaphragm metering pump one preferred embodiment under the utility model liquid;
Fig. 2 is the internal structure schematic representation of bar-link drive in the reciprocal diaphragm metering pump under the utility model liquid;
Fig. 3 is the internal structure schematic representation of pump head device in the reciprocal diaphragm metering pump under the utility model liquid.
The mark of each parts is following in the accompanying drawing: 1, stroke controlling mechanism; 2, bar-link drive; 3, pump head device; 4, carry liquid; 5, support tube; 6, drain pipe; 7, mounting plate; 8, bellows; 10, Flow-rate adjustment handle; 20, frame; 21, worm and gear transmission; 22, skewed slot bent axle; 23, end bracket enclosed; 24, connecting rod; 25, crosshead; 30, filter screen; 31, suck one-way valve; 32, septum assembly; 33, exhaust port one-way valve; 34, pump head connecting rod.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1 and Fig. 3; The utility model is embodiment comprise: reciprocal diaphragm metering pump under a kind of liquid; Comprise: stroke controlling mechanism 1, bar-link drive 2 and pump head device 3; Stroke controlling mechanism 1 is arranged on the top of carrying liquid 4 with bar-link drive 2, and pump head device 3 is immersed in to be carried in the liquid 4, is provided with support tube 5 between pump head device 3 and the bar-link drive 2 and is connected; When said support tube 5 falls short of, can increase length according to field condition, bar-link drive 2 is through the vertical mounting structure that is connected between support tube 5 and the pump head device 3; Pump head device 3 comprises and is provided with filter screen 30, suction port one-way valve 31, septum assembly 32, exhaust port one-way valve 33 and pump head connecting rod 34; Pump head connecting rod 34 is set in the support tube 5; Bar-link drive 2 drives pump head connecting rod 34 to-and-fro motion in carrying liquid 4; Suck one-way valve 31 and be arranged between filter screen 30 and the septum assembly 32, the port of exhaust port one-way valve 33 is provided with a drain pipe 6, and drain pipe 6 extends to the outside of carrying liquid 4.
Further, see also Fig. 2, said stroke controlling mechanism 1 is provided with Flow-rate adjustment handle 10, accurately the conveying flow quantity of control link driving mechanism 2 in stroke procedure; Bar-link drive 2 comprises frame 20, worm and gear transmission 21, skewed slot bent axle 22, end bracket enclosed 23, connecting rod 24 and crosshead 25; Skewed slot bent axle 22 connection traffic regulating handles 10; Worm and gear transmission 21 is set on the skewed slot bent axle 22, and end bracket enclosed 23 is sealed in worm and gear transmission 21 and skewed slot bent axle 22 in the frame 20, and connecting rod 24 is connected with pump head connecting rod 34 through crosshead 25; Satisfy in the quantity-produced working state and change the flow of metering pump, increase work efficiency.
Reciprocal diaphragm metering pump solves the problem that pump head sucks difficulty under the utility model liquid; Be that bar-link drive part 2 is placed the liquid level top; Also can place on the top or ground of container; Relatively typical application is that liquid with sunken tank is transported in the ground pipeline, and its working principle is: drive 34 to-and-fro motion of pump head connecting rods thereby drive worm and gear transmission 21 drive link 24 by drive motor through coupling, make the cavity volume alternate of airtight membrane pump head unit 3; Utilize the pressure official post to carry liquid 4, and then flow into drain pipe 6 drains through exhaust port one-way valve 33 through filter screen 30 and suction one-way valve 31.Wherein stroke controlling mechanism 1 adopts the method for indirect regulation crank radius to change stroke; Can under non-stop-machine state, change the flow of metering pump thereby satisfy in producing continuously, thereby promptly be that the value that Flow-rate adjustment handle 10 through the rotation scale changes the position change throw of eccentric of skewed slot bent axle 22 in cavity reaches the control to flow; And the characteristics of flow of fluid are intermittently and pulse in the pump head device 3; When the setting height(from bottom) of metering pump is positioned at more than the liquid level than higher the time; It is very poor that the suction performance of metering pump can become, even can't work, so directly be placed under the liquid through a filter screen 30 at the suction one-way valve 31 of pump head device 3; And between support tube 5 and mounting plate 7, seal, or between support tube 5 and conveying liquid container and mounting plate 7, seal with filler or bellows 8 with bellows 8.
Reciprocal diaphragm metering pump is different from existing technology under the utility model liquid: its bar-link drive part partly is installed separately with the pump head device; Bar-link drive partly is installed on the basis, ground and does not contact with liquid; The pump head device is immersed in liquid and guarantees below liquid level; Liquid is poured in down a chimney in the pump naturally, thereby make its setting height(from bottom) unrestricted, easy to operate.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (5)
1. reciprocal diaphragm metering pump under the liquid; Comprise: stroke controlling mechanism, bar-link drive and pump head device; It is characterized in that: said stroke controlling mechanism and bar-link drive are arranged on the top of carrying liquid, and said pump head device is immersed in to be carried in the liquid, are provided with support tube between said pump head device and the bar-link drive and are connected; Said pump head device comprises and is provided with filter screen, suction port one-way valve, septum assembly, exhaust port one-way valve and pump head connecting rod; The pump head connecting rod is set in the support tube, and said bar-link drive drives the to-and-fro motion in carrying liquid of pump head connecting rod, and said suction one-way valve is arranged between filter screen and the septum assembly; The port of said exhaust port one-way valve is provided with a drain pipe, and said drain pipe extends to the outside of carrying liquid.
2. reciprocal diaphragm metering pump under the liquid according to claim 1 is characterized in that, said stroke controlling mechanism is provided with the Flow-rate adjustment handle.
3. reciprocal diaphragm metering pump under the liquid according to claim 1; It is characterized in that; Said bar-link drive comprises frame, worm and gear transmission, skewed slot bent axle, end bracket enclosed, connecting rod and crosshead, said skewed slot bent axle connection traffic regulating handle, and said worm and gear drive sleeve is loaded on the skewed slot bent axle; In frame, said connecting rod is connected with the pump head connecting rod through crosshead said end bracket enclosed with worm and gear transmission and skewed slot crankshaft seal.
4. reciprocal diaphragm metering pump under the liquid according to claim 1; It is characterized in that; The frame lower of said bar-link drive is provided with a mounting plate; Said pump head connecting rod and drain pipe wear respectively and are fixed in the mounting plate, and said support tube is fixed on the lower end of mounting plate, are provided with bellows between said pump head connecting rod and the mounting plate.
5. reciprocal diaphragm metering pump under the liquid according to claim 1 is characterized in that, said bar-link drive is through the vertical mounting structure that is connected between support tube and the pump head device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201360053U CN202500734U (en) | 2012-03-31 | 2012-03-31 | Submerged reciprocating diaphragm type metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201360053U CN202500734U (en) | 2012-03-31 | 2012-03-31 | Submerged reciprocating diaphragm type metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500734U true CN202500734U (en) | 2012-10-24 |
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ID=47037349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201360053U Expired - Lifetime CN202500734U (en) | 2012-03-31 | 2012-03-31 | Submerged reciprocating diaphragm type metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237729A (en) * | 2015-07-16 | 2017-10-10 | 孙立民 | A kind of fluid lifts device and its intermittent power hoisting mechanism |
-
2012
- 2012-03-31 CN CN2012201360053U patent/CN202500734U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237729A (en) * | 2015-07-16 | 2017-10-10 | 孙立民 | A kind of fluid lifts device and its intermittent power hoisting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
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| CX01 | Expiry of patent term |