CN2799901Y - Bidirectional diaphragm pump - Google Patents
Bidirectional diaphragm pump Download PDFInfo
- Publication number
- CN2799901Y CN2799901Y CN 200520072950 CN200520072950U CN2799901Y CN 2799901 Y CN2799901 Y CN 2799901Y CN 200520072950 CN200520072950 CN 200520072950 CN 200520072950 U CN200520072950 U CN 200520072950U CN 2799901 Y CN2799901 Y CN 2799901Y
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- diaphragm
- pump
- pair
- pump housing
- motor
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Abstract
The utility model relates to a bidirectional diaphragm pump, particularly a bidirectional diaphragm pump on an individual dust sampler used for coal mines. The utility model is composed of a pair of pump bodies, two pump body fixing seats on the pump bodies, a pair of vibrating diaphragms which are arranged in the centers of the pump body fixing seats, a motor which is arranged between the pump body fixing seats, a connection mechanism which is used for connecting the pair of vibrating diaphragms to the motor, an air buffering chamber which is connected with the pump bodies, and air inlet and outlet valves which are arranged on the pair of pump bodies, wherein the connection mechanism is a connection seat which is formed with a roller cavity and the middle parts of the upper and lower wall bodies of the connection seat are provided with a pair of vibrating diaphragm connecting lugs which are connected with the vibrating diaphragms. The air inlet and outlet valves are composed of air inlet and outlet holes and air inlet and outlet valve sheets. An output shaft of the motor is provided with an eccentric wheel which is provided with an eccentric shaft, and the eccentric shaft is provided with a roller which is held in the roller cavity of the connection seat. The utility model has the advantages that the connection mechanism has reasonable structure and can ensure the vibrating diaphragms to run smoothly; [the] air inlet and outlet valves on the pair of the pump bodies can be easily installed, and can reliably act; the motor is reasonably matched with the connection mechanism; the whole structure is compact.
Description
Technical field
The utility model relates to a kind of two-way diaphragm pump, the two-way diaphragm pump on the individual dust sampler that particularly a kind of colliery is used.
Background technique
Individual dust sampler is that respiratory exposes wearing instrument or claiming portable instrument of dust around being used to measure miner in the work team.In individual dust sampler, pump all is installed, make sampling head gather the gas sample of respiratory gas by the work of pump, promptly know the situation of dust in the respiratory gas.Yet the diaphragm pump that is configured on the individual dust sampler in the prior art is one-way pump, the shortcoming of one-way pump is easily to produce pulse pneumatic, therefore air-flow shows as not steadily, makes the air-flow of sampling head also show as pulse pneumatic, does not cause separation effect high and deviation is big; Because under the pulse pneumatic situation, the air mass flow loss is bigger, for example require in theory to gather the gas that 2L/ divides, but reality only is the 1.6L/ branch that 0.4L causes damage because of pulsation, deviation ratio reaches 20%, and promptly flow error reaches 20%, causes sampled data inaccurate.
China Patent No. 90205529.1 has been introduced a kind of essential safe type colliery double pump dust sampler, it be to the membrane pump in the individual dust sampler in the prior art have that flow pulsation is big, the dead point occurs in the work, under the influence of ore deposit downhole oil, water, mist, flow obviously descends and the stability problem that influence the sampling process flow proposes improvement project behind the band dirt, makes that membrane pump embodiment volume is little, does not have the dead point in the stability of flow, work.Its concrete technological scheme is: to plane four connecting rods that the connection of two membrane pumps adopts two pairs to lump together, the centre is connected with bearing, links to each other with direct current generator by bearing in the bearing support and transmission group.But, there is following shortcoming in this patented technology scheme: one, the connect mechanism that links four connecting rod forms of a pair of diaphragm often shows not steady in movement process, it is existing rotation, be attended by swing again, the shortcoming of this motion can lead directly to film or claim the bumpy motion of diaphragm, thereby brings disaster to the stationarity that needs gas collecting, promptly influences collection effect; Its two, valve mechanism does not give announcement, but according to prior art, the being seen steel ball valve that is generally at present, the processing technology trouble of steel ball valve, require high, inconvenience is installed; Its three, unreasonable by the transmitting assemblies that direct current generator drives by bearing, bearing support and quadratic crank mechanism connecting arrangement, cause the stationarity in the movement process poor; Structure shows as loosely between its four, two membrane pumps, makes overall volume big.
Summary of the invention
Task of the present utility model be the rational in infrastructure of a kind of connect mechanism that is used to link a pair of diaphragm will be provided and guarantee robust motion, valve mechanism is simple and easy for installation, service-strong, motor and the connect mechanism that is used to link a pair of diaphragm between cooperate reasonably, compact overall structure, two-way diaphragm pump that volume is little.
Task of the present utility model is finished like this, a kind of two-way diaphragm pump, by a pair of pump housing 1,2, respectively at the pump housing 1, pump housing fixed base 3 on 2,3 ', be located in pump housing fixed base 3 respectively, the a pair of diaphragm 4 of 3 ' central authorities, 5, corresponding to pump housing fixed base 3,3 ' between motor 6, be respectively applied for and link a pair of diaphragm 4,5 and the connect mechanism of motor 6, link the pump housing 1 respectively, 2 gas buffer chamber 7, be located at a pair of pump housing 1, advancing on 2, the valve of giving vent to anger is formed, described connect mechanism is a joint seat 10, be formed with roller chamber 32 on this joint seat 10, on the joint seat 10, the middle part of lower wall has extended a pair of diaphragm engaging lug 31 respectively, a pair of diaphragm engaging lug 31 respectively with diaphragm 4,5 connect; Described inlet, outlet valve is respectively by constituting into and out of pore 13,11 and inlet, outlet valve block 8,9; Be installed with an eccentric wheel 28 on the shaft 21 of described motor 6, extended an eccentric shaft 29 on the eccentric wheel 28, eccentric shaft 29 is provided with a roller 30, and roller 30 is contained in the roller chamber 32 of joint seat 10.
Diaphragm 4,5 described in the utility model be shaped as basin shape, the centre offers screw among the basin shape, is equipped with on the screw to be used for the set screw 17 mutually solid with diaphragm engaging lug 31.
Inlet, outlet valve block 8,9 described in the utility model is the diaphragm of film shape.
Motor 6 described in the utility model by a support 26 be located at corresponding to pump housing fixed base 3,3 ' between, the upper and lower position of support 26 respectively with pump housing fixed base 3,3 ' fix.
The connect mechanism that is used to link diaphragm 4,5 and motor 6 disclosed in the utility model is rational in infrastructure, can ensure the easy motion of a pair of diaphragm 4,5; Easy for installation, the reliable effect of inlet, outlet valve mechanism on a pair of pump housing 2,3; Cooperating between motor 6 and the connect mechanism is reasonable; Compact overall structure has been dwindled overall volume.
Description of drawings
Accompanying drawing is that the utility model is mounted to the embodiment's schematic representation that goes in the housing 40 of whole dust sampler.
Embodiment
In the drawings, as individual dust sampler, have a housing 41 and cap 35, be provided with rechargeable battery 34, control circuit board 36, indicator tube 41 in the shell chamber of housing 41, establish indicating window 39, the switch 37 that is electrically connected with control circuit board 36, charge power supply socket, data adjustment hole etc. respectively at the sidepiece of housing 40.The two-way diaphragm pump of the utility model is arranged in the barrier film pump chamber territory 46 in shell chamber of housing 40.
Because the structural type and the mode of action of the pump housing 1,2 of the two-way diaphragm pump of the utility model are consistent, therefore, claimant's emphasis describes with the pump housing 1, the pump housing 1 is fixed by screw 15 and pump housing fixed base 3, because the central authorities at pump housing fixed base 3 are hollow, promptly be formed with a through hole that is used to hold diaphragm 4, the edge of through hole is formed with a diaphragm positioning chamber 18, the edge of diaphragm 4 is shelved on this diaphragm positioning chamber 18, and the central authorities of diaphragm 4 are fixing with the diaphragm engaging lug 31 of the joint seat 10 of connect mechanism with set screw 17.Inlet, outlet valve on the pump housing 1 is respectively by constituting into and out of pore 13,11, inlet, outlet valve sheet 8,9, concrete position arrangement is: be opened in 1 position corresponding to described diaphragm 4 of the pump housing into and out of pore 13,11, from figure, can clearly be seen that, position corresponding to diaphragm 4 is the pump chamber 16 of the pump housing 1, know into and out of pore 11,13 to be opened on the roof of pump chamber 16 self-evidently, communicate with pump chamber 16 respectively.Wherein, inlet hole 11 also be routed to the pump housing 1 on an end of suction tude 14 communicate, the other end of suction tude 14 is connected on the interface of an air outlet adapter 22, air outlet adapter 22 is routed on the gas buffer chamber 7 by another interface on it; Air outlet hole 11 then also communicates with the shell chamber of housing 40.With corresponding screw 12 inlet, outlet valve block 8,9 by film such as rubber, nylon membrane, plastic film and so on is set respectively on the pore 13,11.When the air of introducing by suction tude 14 and after entering into pump chamber 16 through inlet hole 13, air-intake valve plate 8, and then draw through air outlet hole 11, the valve block 9 of giving vent to anger, the passage that formation circulates, and in the process that circulates, the On/Off of inlet, outlet valve block 8,9 embodies by the motion of the diaphragm 4 of basin shape, and the motion of diaphragm 4 is to embody by the joint seat 10 as connect mechanism.
It is to link with diaphragm 4,5 respectively by aforesaid set screw 17 that the diaphragm engaging lug 31 that forms is extended in joint seat 10 both sides, the middle part of joint seat 10 is formed with one and is used for holding its interior roller chamber 32 for roller 30, rotation by roller 32, drive the stretchability motion alternately of diaphragm 4,5 dos respectively, make in the corresponding pump chamber 16 of the pump housing 1,2 and constantly just producing/negative pressure, when negative pressure produced, air-intake valve plate 8 was opened, and the valve block 9 of giving vent to anger is closed; When malleation produced, air-intake valve plate 8 was closed, and the valve block 9 of giving vent to anger is opened.Motor 6 be arranged on by means of a support 26 corresponding to pump housing fixed base 3,3 ' between, the shaft 21 of the motor 6 of more specifically saying so corresponding to pump housing fixed base 3,3 ' between, promptly shaft 21 be stretched over pump housing fixed base 3,3 ' between.Support 26 usefulness screws 25 respectively with pump housing fixed base 3,3 ' fix, the motor 6 that is electrically connected with switch 37 by wiring pin 19 is and is horizontally disposed with, its shaft 21 links eccentric wheels 28 passing through support 26 back, the axle head of the eccentric shaft 29 of eccentric wheel 28 and setting firmly roller 30 corresponding to 32 positions, described roller chamber.Along with the unlatching of switch 37, motor 6 is worked fast, roller 30 rapid movements, thus make joint seat 10 do upper and lower motion fast.
The upper and lower locular wall of gas buffer chamber 7 adopts buffer film 24 respectively, and is with pressed edge ring 23 that buffer film 24 is fixing.The both sides of gas buffer chamber 7 offer suction tude attachment hole 27 respectively, the suction tude attachment hole 27 of one side connects with the suction tude 42 on the pump housing 2, connect of air input joint 20 on the suction tude attachment hole 27 of opposite side and connect and chew, another of air input joint 20 connects to chew by pipeline and described indicator tube 41 and connects.Be preset in pump housing fixed base 3 ' on connecting pin 33 be when being used for being installed to the utility model in the described barrier film pump chamber territory 46 with the chamber that is preset in housing 40 in fixed base 38 mutually solid.
Another of the air input joint 20 that the front is said connects to chew and is connected on the indicator tube 41, yet more specifically says it is the upper end that is connected in indicator tube 41, and receive on the sampling head intake interface 44 of housing 41 by a connecting tube that adds 43 lower end of indicator tube 41.Sampling head intake interface 44 links sampling head 47 by flexible pipe 45 again.
The claimant narrates the working principle of the two-way diaphragm pump of the utility model on individual dust sampler.Because whole individual dust sampler is of portable form, that is to say that being arranged on one carries the inherent mine roadway spot sampling of bag on the arm, the retaining member of sampling head 47 by the clip on it, hook and so on is clamped near nose from sampling person's breathing organ pipe, the mouth, as last pocket place, the clothes left front place of clothes.Earlier with the timing nulling button zero clearing on the sampler, press switch 37 again, motor 6 work, its shaft 21 drives eccentric wheel 28 rotations, eccentric shaft 29 also revolves, roller 30 on the eccentric shaft 29 rotates in roller chamber 32, constantly makes joint seat 10 do upper and lower motion, and the upper and lower motion of joint seat 10 drives the action that the diaphragm 4,5 that links on it is made stretchability respectively.With the pump housing 1 is example: when the moment that diaphragm 4 is moving downward, negative pressure just appears in the pump chamber 16, air-intake valve plate 8 is opened, and the valve block 9 of giving vent to anger is closed, at this moment, air enters gas buffer chamber 7 through flexible pipe 45, connecting tube 43, indicator tube 41, air input joint 20 successively from sampling head 47, and meanwhile, the air in the gas buffer chamber 7 is introduced pump chamber 16 13 times through air outlet adapter 22, suction tude 14, inlet hole; When diaphragm 4 in the moment that moves upward, then air-intake valve plate 8 is closed, the valve block 9 of giving vent to anger is opened, and the air in the pump chamber 16 is drained.Motion so again and again if work team finishes, so, can be weighed or does other corresponding analysis, thereby be grasped the quality of the respiratory air in the mine entering and accumulate in dust in the sampling head 47.In above-mentioned working procedure, because the working principle of the pump housing 2 is identical with the pump housing 1, so the claimant is mentioned.According to general knowledge, two-way diaphragm pump is difficult for producing pulse pneumatic compared with unidirectional diaphragm pump, can guarantee the stationarity of air-flow, and flow error is less.For example when individual dust sampler set be 2L/ branch air mass flow the time, two-way diaphragm pump can ensure that flow error is not more than 2.5%, than the flow error 20% of the unidirectional diaphragm pump in the prior art significant achievement is arranged.In the process of taking diaphragm 4,5 motions, show as motion steadily as the joint seat 10 of connect mechanism, joint seat 20 can not go out the such dancing of structure in the phenomenon prior art; The inlet, outlet valve need not adopt steel ball and adopt diaphragm, hard victory not only is installed, makes easily, and open/close reliable; Binding between motor 6 and the joint seat 10 is fairly simple, assembles also very convenient; Compact overall structure, shared volume is little.
Claims (4)
1, a kind of two-way diaphragm pump, by a pair of pump housing (1), (2), respectively at the pump housing (1), (2) pump housing fixed base (3) on, (3 '), be located in pump housing fixed base (3) respectively, the a pair of diaphragm (4) of (3 ') central authorities, (5), corresponding to pump housing fixed base (3), motor between (3 ') (6), be respectively applied for and link a pair of diaphragm (4), (5) and the connect mechanism of motor (6), link the pump housing (1) respectively, (2) gas buffer chamber (7), be located at a pair of pump housing (1), advancing (2), the valve of giving vent to anger is formed, it is characterized in that described connect mechanism is a joint seat (10), this joint seat is formed with roller chamber 32 on (10), on the joint seat (10), the middle part of lower wall has extended a pair of diaphragm engaging lug (31) respectively, a pair of diaphragm engaging lug (31) respectively with diaphragm (4), (5) connect; Described inlet, outlet valve is respectively by constituting into and out of pore (13), (11) and inlet, outlet valve block (8), (9); Be installed with an eccentric wheel (28) on the shaft (21) of described motor (6), extended an eccentric shaft (29) on the eccentric wheel (28), eccentric shaft (29) is provided with a roller (30), and roller (30) is contained in the roller chamber (32) of joint seat (10).
2, two-way diaphragm pump according to claim 1, what it is characterized in that described diaphragm (4), (5) is shaped as basin shape, and the centre offers screw among the basin shape, is equipped with on the screw to be used for the set screw (17) mutually solid with diaphragm engaging lug (31).
3, two-way diaphragm pump according to claim 1 is characterized in that described inlet, outlet valve block (8), (9) are the diaphragm of film shape.
4, two-way diaphragm pump according to claim 1, it is characterized in that described motor (6) is located at corresponding between pump housing fixed base (3), (3 ') by a support (26), the upper and lower position of support (26) fixes with pump housing fixed base (3), (3 ') respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072950 CN2799901Y (en) | 2005-06-20 | 2005-06-20 | Bidirectional diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072950 CN2799901Y (en) | 2005-06-20 | 2005-06-20 | Bidirectional diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2799901Y true CN2799901Y (en) | 2006-07-26 |
Family
ID=36842399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520072950 Expired - Fee Related CN2799901Y (en) | 2005-06-20 | 2005-06-20 | Bidirectional diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2799901Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213211A (en) * | 2011-06-13 | 2011-10-12 | 无锡格林通安全装备有限公司 | Gas-sampling diaphragm pump |
| CN104451535A (en) * | 2014-11-17 | 2015-03-25 | 扬州五亭桥缸套有限公司 | Surface treatment method for cylinder sleeve |
-
2005
- 2005-06-20 CN CN 200520072950 patent/CN2799901Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213211A (en) * | 2011-06-13 | 2011-10-12 | 无锡格林通安全装备有限公司 | Gas-sampling diaphragm pump |
| CN104451535A (en) * | 2014-11-17 | 2015-03-25 | 扬州五亭桥缸套有限公司 | Surface treatment method for cylinder sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |