CN203201768U

CN203201768U - Composite pump with diaphragm and piston

Info

Publication number: CN203201768U
Application number: CN 201320229412
Authority: CN
Inventors: 刘子良
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-28
Filing date: 2013-04-28
Publication date: 2013-09-18
Anticipated expiration: 2023-04-28

Abstract

The utility model discloses a composite pump with a diaphragm and a piston. The composite pump with the diaphragm and the piston comprises a pump outer shell with an inner cavity and an eccentric shaft, a ball bearing is arranged on the outer surface of the eccentric shaft, two or more joint bearings are connected in the circumferential direction of the outer surface of the ball bearing, a diaphragm sheet and the piston are connected on the middle upper portions of the joint bearings from bottom to top in sequence in a sleeved mode, and the joint bearings drive the diaphragm sheet and the piston to simultaneously move upwards or downwards. According to the composite pump with the diaphragm and the piston, the diaphragm sheet and the piston are arranged in the inner cavity of the pump outer shell from bottom to top, the compressing function of the piston is mainly relied on, large pressure can be output, the pressure borne by the diaphragm sheet arranged below the piston is small, the diaphragm sheet is not easy to damage, meanwhile, the diaphragm sheet can play a role in sealing, the defect that the leakage of an existing piston pump easily occur is overcome, and therefore the using requirements of people are met, meanwhile, a pressure relief device is further arranged on the composite pump, and the fact that the diaphragm sheet can not be broken and damaged due to the fact that the pressure inside the pump is too large is ensured.

Description

A kind of barrier film, piston combined pump

Technical field

The utility model relates to a kind of pump, particularly a kind of combined pump that contains simultaneously barrier film and piston.

Background technique

As everyone knows, at present pump commonly used has two kinds on the market, and a kind of is diaphragm pump, and common diaphragm pump is subject to serious restriction because its barrier film must high resilience thereby make it pump pressure, if it is excessive to pump pressure, can make barrier film very easily damaged; Another is reciprocating pump, and existing reciprocating pump pumps pressure large, but because it is intrinsic, during work, very easily make piston-cylinder wearing and tearing occur, thereby so that Seepage appears in this pump, therefore all there is some defective in two kinds of above-mentioned pumps, can not satisfy well people's usage requirement.

The model utility content

In order to address the above problem, it is a kind of simple in structure that the purpose of this utility model is to provide, and not only pumps pressure large, but also combined pump that can seepage.

The utility model for the technological scheme that solves its technical problem and adopt is:

A kind of barrier film, the piston combined pump, comprise the pump casing that contains inner chamber, be provided with suction port and exhaust port on the described pump casing, the place, neutral position of the inner chamber bottom of described pump casing is provided with the eccentric shaft that can bob and weave, this eccentric shaft be provided with in appearance ball bearing, circumferentially be connected with two or more joint shaft bearings on the outer surface of described ball bearing, the middle and upper part of described joint shaft bearing is socketed with diaphragm and piston from the bottom up successively, the internal chamber wall of this diaphragm and pump casing is tightly connected, described joint shaft bearing drives diaphragm and simultaneously up or down motion of piston, the top of described piston is provided with the wear resisting cylinder jacket that can allow piston move up and down within it, offer respectively inlet hole and tap hole on the described wear resisting cylinder jacket, be respectively arranged with the one-way membrane A that can only enter and the one-way membrane B that can only discharge on described inlet hole and the tap hole, described inlet hole and tap hole are connected with suction port and exhaust port respectively.

For so that the output of combined pump is more more stable, the quantity of described joint shaft bearing is three, and these three joint shaft bearings are evenly distributed on the outside of ball bearing.

For so that the topology layout of combined pump is more succinct, described tap hole is arranged on the neutral position of wear resisting cylinder jacket, and described inlet hole is around the outside that is arranged on tap hole.

For so that combined pump is continuously exported, the quantity of described inlet hole and tap hole is three, and described three inlet holes are evenly distributed on the outside of tap hole.

For processing and the installation that makes things convenient for combined pump, described pump casing comprises pump upper casing and pump lower casing.

In order further to prevent the diaphragm damage of breaking, be provided with the pressure relief device for the shunting pressure release on described tap hole and the passage that exhaust port is connected.

In the utility model, described pressure relief device comprises the through hole that is arranged on the passage, and described through hole is connected with for the sealant beads with its shutoff, and a side of described sealant beads is connected with spring, and the other end of described spring is connected with look nut.

The beneficial effects of the utility model are: since the utility model by be provided with from the bottom up in the inner chamber of pump casing the inside diaphragm and and piston, the main compression that relies on piston, can export very large pressure, and it is very little to be arranged on the pressure that the diaphragm below the piston bears, be not easy to damage, diaphragm can also play the effect of sealing simultaneously, has solved the shortcoming of the easy seepage of existing reciprocating pump, thereby has satisfied people's usage requirement; Pump casing is made of pump upper casing and pump lower casing in addition, has made things convenient for processing and the installation of combined pump; Also be provided with simultaneously the pressure relief device of shunting pressure release on the utility model, when the pressure of pump inner fluid soon reach diaphragm bear the limit time, pressure relief device can be opened the shunting pressure release, guarantee that diaphragm can the damage of breaking because the pump internal pressure is excessive, effectively prolonged the working life of combined pump.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is internal structure schematic diagram of the present utility model;

Fig. 2 is the internal structure schematic diagram of another angle of the utility model.

Embodiment

See figures.1.and.2, a kind of barrier film, the piston combined pump, comprise the pump casing 1 that contains inner chamber, as the utility model preferred embodiment, described pump casing 1 comprises pump upper casing 11 and pump lower casing 12, the processing of pump casing 1 and the installation of combined pump have been made things convenient for, be provided with suction port and exhaust port on this pump casing 1, described suction port makes things convenient for combined pump to be connected with the conveyance conduit in the external world with exhaust port, the place, neutral position of the inner chamber bottom of described pump casing 1 is provided with the eccentric shaft 2 that can bob and weave, described eccentric shaft 2 can be by extraneous its rotation of driven by motor, eccentric shaft 2 is in the process of rotating, can be up and down repeatedly swing, this eccentric shaft 2 be provided with in appearance ball bearing 20, circumferentially be connected with two or more joint shaft bearing 3 on the outer surface of described ball bearing 20, this joint shaft bearing 3 can be eliminated swinging of eccentric shaft 2, only can move up and down, therefore, during work, eccentric shaft 2 driving joint bearings 3 are constantly done and are pumped, the middle and upper part of described joint shaft bearing 3 is socketed with diaphragm 4 and piston 5 from the bottom up successively, this diaphragm 4 not only is tightly connected with the internal chamber wall of pump casing 1, diaphragm 4 also is tightly connected with joint shaft bearing 3 simultaneously, described joint shaft bearing 3 drives diaphragm 4 and simultaneously up or down motion of piston 5, the top of described piston 5 is provided with the wear resisting cylinder jacket 6 that can allow piston 5 move up and down within it, offer respectively inlet hole 61 and tap hole 62 on the described wear resisting cylinder jacket 6, be respectively arranged with the one-way membrane A71 that can only enter and the one-way membrane B72 that can only discharge on described inlet hole 61 and the tap hole 62, described inlet hole 61 and tap hole 62 are connected with suction port and exhaust port 10 respectively, during installation, above-mentioned wear resisting cylinder jacket 6 is pressed on the peripheral edge of diaphragm 4 on the pump lower casing 12, thereby so that the internal chamber wall of diaphragm 4 and pump casing 1 be tightly connected.

Further, the quantity of described joint shaft bearing 3 is preferably three, these three joint shaft bearings 3 are evenly distributed on the outside of ball bearing 20, the middle and upper part of described three joint shaft bearings 3 is socketed with respectively diaphragm 4 and piston 5 from the bottom up, the number of certainly, above-mentioned joint shaft bearing 3 can also be set to other quantity.

Further again, the quantity of described inlet hole 61 and tap hole 62 all preferentially is set to three, described three tap holes 62 are arranged on the neutral position of wear resisting cylinder jacket 6, described three inlet holes 61 are evenly distributed on the outside of three tap holes 62, certainly, above-mentioned inlet hole 61 and the quantity of tap hole 62 can also be set to other numbers.

Further, be provided with the pressure relief device 8 for the shunting pressure release on described tap hole 62 and the passage that exhaust port 10 is connected, here as preferred embodiment, described pressure relief device 8 comprises the through hole 80 that is arranged on the passage, described through hole 80 is connected with for the sealant beads 82 with its shutoff, for so that the sealability of sealant beads 82 is better, be provided with seal ring 81 between sealing pearl 82 and the through hole 80, one side of described sealant beads 82 is connected with spring 83, the other end of described spring 83 is connected with look nut 84, the neutral position of this look nut 84 offers for the relief hole 85 of draining shunting, people can change by turning above-mentioned look nut 84 deformation quantity of spring 83, needed pressure when thereby the fluid in the change combined pump is washed sealant beads 82 open, when with pipeline blocking that exhaust port 10 is connected, order can't be discharged smoothly to the fluid in the combined pump, cause the hydrodynamic pressure in the combined pump constantly to rise, when hydrodynamic pressure surpasses spring 83 and is applied to pressure on the sealant beads 82, fluid backs down sealant beads 82, and from relief hole 85 outflows, thereby play the effect of shunting pressure release, effectively prevented the excessive and damage of breaking of pressure that diaphragm 4 bears; The concrete structure of above-mentioned pressure relief device 8 can also be for comprising the through hole that is opened on the passage, this through hole straight up and extend outside the combined pump, the upper end portion of described through hole is provided with balancing weight, by balancing weight with the through hole shutoff, when the hydrodynamic pressure in the combined pump during greater than the gravity of balancing weight, fluid is with the coordinating block jack-up that makes progress, therefore fluid can flow out from the through hole, play the effect of shunting pressure release, so the utility model can be regulated maximum pressure in the combined pump by the balancing weight that adopts different quality, when the pump internal pressure reached setting pressure, pressure relief device 8 was opened and is shunted pressure release, prevented the excessive and damage of breaking of pressure that diaphragm 4 bears; If when the hydrodynamic pressure in the combined pump did not reach predetermined pressure, 8 of pressure relief devices were in closed condition.

When combined pump of the present utility model normally uses, eccentric shaft 2 is under the driving effect of motor, constantly bob and weave, at this moment, eccentric shaft 2 can drive joint shaft bearing 3 motions, joint shaft bearing 3 has been eliminated swinging of eccentric shaft 2, only keep to-and-fro motion up and down, therefore, joint shaft bearing 3 drives socket diaphragm 4 and simultaneously up or down motion of piston 5 thereon, piston 5 and wear resisting cylinder jacket 6 effect of matching, from inlet hole 61, suck object, and then object discharged from tap hole 62, because piston 5 be arranged on diaphragm 4 above, therefore, piston 5 has born most pressure, so during the larger pressure of combined pump output, diaphragm 4 damage of also can not breaking, simultaneously, because wear resisting cylinder jacket 6 is pressed on diaphragm 4 on the pump lower casing 12, so that the internal chamber wall of diaphragm 4 and pump casing 1 is tightly connected, when wear resisting cylinder jacket 6 wearing and tearing, when causing seepage occurring between piston 5 and the wear resisting cylinder jacket 6, diaphragm 4 can prevent that also seepage from appearring in combined pump, has guaranteed the normal use of combined pump, in addition, pump casing 1 is comprised of pump upper casing 11 and pump lower casing 12, is convenient for people to the part of dismounting and change combined pump inside.

The above only is preferential mode of execution of the present utility model, as long as realize that with basic identical means the technological scheme of the utility model purpose all belongs within the protection domain of the present utility model.

Claims

1. barrier film, the piston combined pump, comprise the pump casing (1) that contains inner chamber, described pump casing is provided with suction port and exhaust port on (1), it is characterized in that: the place, neutral position of the inner chamber bottom of described pump casing (1) is provided with the eccentric shaft (2) that can bob and weave, this eccentric shaft (2) be provided with in appearance ball bearing (20), circumferentially be connected with two or more joint shaft bearing (3) on the outer surface of described ball bearing (20), the middle and upper part of described joint shaft bearing (3) is socketed with diaphragm (4) and piston (5) from the bottom up successively, this diaphragm (4) is tightly connected with the internal chamber wall of pump casing (1), described joint shaft bearing (3) drives diaphragm (4) and simultaneously up or down motion of piston (5), the top of described piston (5) is provided with the wear resisting cylinder jacket (6) that can allow piston (5) move up and down within it, offer respectively inlet hole (61) and tap hole (62) on the described wear resisting cylinder jacket (6), be respectively arranged with the one-way membrane A(71 that can only enter on described inlet hole (61) and the tap hole (62)) and the one-way membrane B(72 that can only discharge), described inlet hole (61) and tap hole (62) are connected with suction port and exhaust port (10) respectively.

2. a kind of barrier film according to claim 1, piston combined pump, it is characterized in that: the quantity of described joint shaft bearing (3) is three, these three joint shaft bearings (3) are evenly distributed on the outside of ball bearing (20).

3. a kind of barrier film according to claim 1, piston combined pump, it is characterized in that: described tap hole (62) is arranged on the neutral position of wear resisting cylinder jacket (6), and described inlet hole (61) is around the outside that is arranged on tap hole (62).

4. a kind of barrier film according to claim 3, piston combined pump, it is characterized in that: the quantity of described inlet hole (61) and tap hole (62) is three, and described three inlet holes (61) are evenly distributed on the outside of tap hole (62).

5. a kind of barrier film according to claim 1, piston combined pump, it is characterized in that: described pump casing (1) comprises pump upper casing (11) and pump lower casing (12).

6. a kind of barrier film according to claim 1, piston combined pump is characterized in that: be provided with the pressure relief device (8) for the shunting pressure release on described tap hole (62) and the passage that exhaust port (10) is connected.

7. a kind of barrier film according to claim 6, piston combined pump, it is characterized in that: described pressure relief device (8) comprises the through hole (80) that is arranged on the passage, described through hole (80) is connected with for the sealant beads (82) with its shutoff, one side of described sealant beads (82) is connected with spring (83), and the other end of described spring (83) is connected with look nut (84).