KR200440456Y1 - A twin roller pump - Google Patents

Abstract

The present invention improves the structure of the bi-cylinder pump of the applicant's prior filed Korean Patent Application No. 10-2006-44047 so that the upper and lower sliders are eccentric by their shafts in the upper and lower volume chambers, respectively. In the inward movement, when the upper and lower diaphragms are relatively sliding between the first and second guides, the gap between the upper diaphragm and the lower diaphragm does not occur and close to each other, so that the suction port The upper diaphragm 3 attached to the upper slider 2 and the lower diaphragm 5 attached to the lower slider 4 to prevent the fluid from leaking to the discharge port side to prevent the lowering of the overall pumping force are first. And a suction port 10 and a discharge port 11 disposed between the second guides 6 and 7 and disposed between the upper volume chamber 8 and the lower volume chamber 9. Inside the arc of the intake port so as not to be blocked by In a conventional bicylinder pump in which the first and second guides 6 and 7 are respectively mounted to the mounting portion 12 and the arc seating portion 13 of the discharge port; At the ends of the upper diaphragm 3 and the lower diaphragm 5, a recess 14 and a lead end 15 are formed, and the upper diaphragm 3 and the lower diaphragm 5 are formed in the recess 14 and The leading ends 15 are in close contact with each other while being in close contact with each other. When the upper diaphragm 3 and the lower diaphragm 5 are spaced apart from each other, the inner circumferential surfaces of the leading end 15 are in close contact with each other so that a gap does not occur. Provides a bicylinder pump.

Pump, bi-cylinder pump, diaphragm, guide, slide body.

Description

Twin cylinder pump {A twin roller pump}

1 is a schematic cross-sectional view showing a bicylinder pump according to an embodiment according to the present invention,

2 is a schematic cross-sectional view showing the state of use;

Figure 3 is a schematic view showing a part of the bicylinder pump according to another embodiment according to the present invention,

[Explanation of symbols for important parts of the drawings]

1: bicylinder pump, 2: upper slide,

3: upper plate, 4: lower slide,

5: lower diaphragm, 6: first guide,

7: second guide, 8: upper volume chamber,

9: lower volume chamber, 10: suction port,

11: discharge port, 12: arc seat of the suction port,

13: arc seat of the discharge port, 14: groove,

15: leading end, 16,17: shaft.

The present invention relates to a bicylinder pump, and more particularly, to a bicylinder pump in which an upper plate attached to an upper slide and a lower plate attached to a lower slide are disposed between the guides; Bi-cylinder designed to maintain and increase the pumping force by preventing the fluid from flowing through the guide by preventing the fluid from flowing through the gap between the upper and lower diaphragms which are spaced apart from each other during operation. It is about a pump.

In general, a bicylinder pump has a pair of identical cylindrical bodies having the same eccentricity with respect to each axis and pivoting in opposite directions while maintaining their axial distances almost mutually, and these impellers. Has a pair of same cylindrical first and first impeller chambers each inscribed in the circumferential direction in the circumferential direction, and a diaphragm connecting between the two impellers.

The bicylinder pump has a first impeller and a second impeller according to a position where the first impeller and the second impeller are disposed in the impeller chamber when the first impeller and the second impeller are in the inner sliding motion in their impeller chamber. An active groove is formed on the outer circumferential surface of the first impeller so that the interaxial distance therebetween is fitted, and an upper end of the diaphragm is inserted into the active groove so that the upper end of the diaphragm slides in the active groove.

However, such a bicylinder pump can not deepen the depth of the active groove due to the structural constraints of the impeller, the coupling force between the active groove and the diaphragm is weak, and furthermore, the pump sucked through the suction port directly strikes the diaphragm, There was a disadvantage that the diaphragm was deformed or broken.

The present applicant proposes the Korean Patent Application No. 10-2006-44047 (name: twin-cylinder pump) to solve the conventional problems as described above to prevent the pumping material sucked through the inlet to directly hit the diaphragm A bicylinder pump was provided to reliably protect the diaphragm.

As described above, the bicylinder pump of the present invention has an upper plate attached to the upper slide and a lower plate attached to the lower slide disposed between the first and second guides, and an inlet port disposed between the upper volume chamber and the lower volume chamber. And the first and second guides are mounted in the circular seating portion of the suction port and the circular seating portion of the discharge port, respectively, so that the discharge port is not blocked by the guides, so that the upper slider and the lower slider are themselves in the upper volume chamber and the lower volume chamber. When each of the eccentric inward movement by the shaft of the upper plate and the lower plate can perform a relatively sliding movement between the first and second guide, the eccentric shaft distance change between the upper main body and the lower slide body It is possible to cope.

However, the bi-cylindrical pump of the present applicant filed Korean Patent Application No. 10-2006-44047, which is made as described above, has an upper slide and a lower slide, each of which is eccentrically inscribed by its shaft in the upper volume chamber and the lower volume chamber, respectively. During the movement, when the upper and lower diaphragms make a relatively sliding movement between the first and second guides, the fluid at the suction port is counted toward the discharge port by the gap between the upper and lower diaphragms which are spaced apart from each other. I had a problem that the overall pumping power weakened.

The present invention improves the structure of the bi-cylinder pump of the applicant's patent application No. 10-2006-44047 of the present applicant as described above so that the upper slider and the lower slider are connected to their shaft in the upper volume chamber and the lower volume chamber. When each of the upper and lower diaphragms is relatively sliding between the first and second guides, the gap between the upper diaphragm and the lower diaphragm is in close contact with each other without causing a gap. It is to provide a twin-cylinder pump that can prevent the fluid of the suction port is counted toward the discharge port through the prevention of the drop of the overall pumping force.

The bicylinder pump of the present invention for achieving the above object of the present invention is the upper plate attached to the upper slide and the lower plate attached to the lower slide is disposed between the first and second guide, the upper volume chamber and A conventional bicylinder pump in which first and second guides are respectively mounted to an arc seat portion of a suction port and an arc seat portion of a discharge port so that the suction port and the discharge port disposed between the lower volume chambers are not blocked by the guides; Grooves and lead ends are formed at the ends of the upper and lower diaphragms, and the upper and lower diaphragms are in close contact with each other while the recesses and the leading ends correspond to each other, so that the upper and lower diaphragms are spaced apart from each other. The inner circumferential surfaces of the lead-out stages are in close contact with each other so that a gap does not occur.

Hereinafter, with reference to the accompanying drawings will be described in detail the bicylinder pump of the present invention.

1 and 2 is a view showing a bicylinder pump according to an embodiment according to the present invention, the bicylinder pump (1) of the present embodiment is the upper plate (3) and the lower bow attached to the upper slide (2) A lower inlet 10 attached to the main body 4 is disposed between the first and second guides 6 and 7, and an inlet 10 arranged between the upper volume chamber 8 and the lower volume chamber 9. ) And the first and second guides 6 and 7 in the arc seat 12 of the inlet and the arc seat 13 of the outlet so that the outlet 11 and the outlet 11 are not blocked by the guides 6 and 7. In a conventional bicylinder pump each mounted; At the ends of the upper diaphragm 3 and the lower diaphragm 5, a recess 14 and a lead end 15 are formed, and the upper diaphragm 3 and the lower diaphragm 5 are formed in the recess 14 and The leading ends 15 are in close contact with each other while being in close contact with each other. When the upper diaphragm 3 and the lower diaphragm 5 are spaced apart from each other, the inner circumferential surfaces of the leading end 15 are in close contact with each other so that a gap does not occur. .

In the bicylinder pump 1 of the present embodiment made as described above, the upper slider 2 and the lower slider 4 have their own in the upper volume chamber 8 and the lower volume chamber 9 as represented in FIG. When the eccentric inward motion is respectively performed by the shafts 16 and 17 of the upper plate 3 and the lower plate 5, the sliding motion between the first and second guides 6 and 7 is relatively reduced. When the ends of the upper diaphragm 3 and the lower diaphragm 5 are spaced apart from each other, the inner circumferential surfaces of the leading end 15 are brought into close contact with each other so that a gap does not occur, so that the fluid is removed from the guides 6 and 7. It is not leaked to the discharge port 11 through, and it does not reduce a pumping force.

As shown in FIG. 3, synthetic resin (rubber) is coated on the inner and outer circumferential surfaces of the upper slider 2, the upper partition 3, the lower slider 4, and the lower partition 5 to improve sealing properties. It is supposed to be possible.

As described above, the twin-cylinder pump of the present invention improves the structure of the dual-cylinder pump of the applicant's previously filed Korean Patent Application No. 10-2006-44047 so that the upper slider and the lower slider have an upper volume chamber and a lower volume chamber. When each of the upper and lower diaphragms makes a relatively sliding movement between the first and second guides, when the inner and outer diaphragms respectively move by their shafts, the gap between the upper diaphragm and the lower diaphragm does not occur. By being in close contact with the fluid, the fluid of the suction port is prevented from counting toward the discharge port side, thereby preventing the reduction of the overall pumping force.

Claims (1)

An upper diaphragm 3 attached to the upper slider 2 and a lower diaphragm 5 attached to the lower slider 4 are disposed between the first and second guides 6, 7, and an upper volume chamber. A circular seat 12 of the suction port and a circular seat of the discharge port so that the suction port 10 and the discharge port 11 disposed between the 8 and the lower volume chamber 9 are not blocked by the guides 6 and 7. In a conventional bicylinder pump to which the first and second guides 6 and 7 are attached to (13), respectively; Grooves 14 and lead ends 15 are formed at the ends of the upper diaphragm 3 and the lower diaphragm 5; The upper diaphragm 3 and the lower diaphragm 5 are in close contact with each other while the groove 14 and the leading end 15 correspond to each other; When the upper diaphragm 3 and the lower diaphragm 5 are spaced apart from each other, the bicylinder pump characterized in that the inner peripheral surfaces of the above-mentioned leading end 15 are in close contact with each other so that a gap does not occur.

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