CN100406731C - Vacuum pump capable of block - Google Patents

Vacuum pump capable of block Download PDF

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Publication number
CN100406731C
CN100406731C CNB2005100421444A CN200510042144A CN100406731C CN 100406731 C CN100406731 C CN 100406731C CN B2005100421444 A CNB2005100421444 A CN B2005100421444A CN 200510042144 A CN200510042144 A CN 200510042144A CN 100406731 C CN100406731 C CN 100406731C
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middle base
upper shell
flexible sheet
pedestal
suction port
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CN1831334A (en
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张坤林
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Abstract

The present invention relates to a blockage preventing vacuum pump which mainly comprises an upper housing, a middle seat, a non-return rubber sheet clamped between the middle seat and the upper housing, a base and an elastic membrance, wherein the elastic membrance is clamped between the middle seat and the base. The present invention is mainly characterized in that a clearance structure is arranged between the middle seat and the elastic membrance and is connected with an air sucking hole and an air discharging hole which are arranged on the middle seat. The present invention aims to achieve the purpose that when moving upwards to the highest position, the elastic membrance can not be completely attached to the lower part of the middle seat to cause blockage.

Description

Anti-locked vacuum pump
Technical field
The present invention relates to a kind of vacuum pump, specifically be meant a kind of stuck vacuum pump that prevents through architecture advances.
Background technique
Vacuum pump is widely used in each field that need vacuumize confined space, is mainly used in confined space is vacuumized.This vacuum pump structure and principle are: folder is established a flexible sheet between a upper shell and a dividing plate, forms an air chamber between this flexible sheet and the upper shell; Upper shell is provided with suction port and the exhaust port that this air chamber is connected with the air chamber outside, and suction port and exhaust port are unidirectional, and direction is opposite; The flexible sheet below links to each other with the output shaft of a motor by a couple axle, an eccentric wheel, during motor operations, drives the flexible sheet knee-action by eccentric wheel, thereby makes air chamber air-breathing from suction port, from the exhaust port exhaust.Air-breathing sky is communicated with the confined space that need vacuumize, and exhaust port is connected with ambient atmosphere, thereby the gas in this confined space can be extracted out by this air chamber.
In above-mentioned vacuum, when air chamber is finished an exhaust, flexible sheet moves to the top of air chamber, air pressure below flexible sheet is greater than the air pressure in this confined space, flexible sheet is closely attached on the upper shell below by complete adhesive, this moment, promptly this vacuum pump was stuck and can't proper functioning if outage motor then may occur and can't drive the situation that flexible sheet moves downward.
Summary of the invention
The invention provides a kind of anti-locked vacuum pump, its main purpose is to overcome that existing vacuum pump is prone to stuck phenomenon in vacuum and the defective that influences its proper functioning.
Technical solution of the present invention one: anti-locked vacuum pump comprises: a upper shell, be provided with intakeport and relief opening with external communications, and be concaved with an annular groove around the intakeport inboard, a side of relief opening inside edge offers a groove; One middle base, be embedded at the upper shell below, this middle base is provided with intakeport, relief opening branch and adds corresponding suction port, exhaust port, the middle base below is provided with the groove of a connection suction port and exhaust port lower edge, one side of top, suction port edge offers a groove, and exhaust port is concaved with an annular groove around the top; One non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber is along being respectively equipped with the first non-return valve block, the second non-return valve block with around suction port, the exhaust port corresponding position, first non-return valve block deflection upper shell, one side, second non-return valve block deflection middle base, one side; One pedestal and a flexible sheet, this pedestal is connected in the upper shell below, this flexible sheet is located between this pedestal and the middle base, form an air chamber between this flexible sheet and the middle base, this flexible sheet below formation one convexedly stretches in the connecting rod of pedestal below, this connecting rod is connected with an eccentric wheel by a couple axle, and this eccentric center links to each other with the output shaft of a motor.
Aforesaid anti-locked vacuum pump, wherein, the two sides of non-return sheet rubber convexes with the potted line that it is centered on around two non-return valve blocks, reveal towards periphery to prevent gas.
Aforesaid anti-locked vacuum pump further comprises: a motor case, be connected in pedestal one side by upper/lower positions, and described motor is installed in this motor case; One lower shell body is connected in pedestal below, and the connecting rod of described flexible sheet below and couple axle, eccentric wheel are surrounded in it, and this lower shell body plays noise dustproof and that produce when reducing the vacuum pump operation.
Aforesaid anti-locked vacuum pump, wherein, the upper shell bottom peripheral edge is provided with the positioning rod of some downward extensions, the positioning rod bottom is provided with tapped hole, the susceptor edges position is provided with the through hole that passes for each positioning rod, lower shell body upper end portion periphery is provided with the cylindrical groove that embeds for each positioning rod end, each cylindrical groove is provided with the screw hole that communicates with the lower shell body lower surface, be combined with a screw in each screw hole, each screw screws in respectively in the tapped hole of each positioning rod bottom, so that upper shell, pedestal, lower shell body are connected to one.
Aforesaid anti-locked vacuum pump, wherein, the upper shell inner side surface extends to form a localization frame downwards around described non-return sheet rubber, this localization frame is provided with the positioning convex point that protrudes out in localization frame, described non-return sheet rubber is embedded in this localization frame, and its periphery is provided with the location indentations that cooperates with aforementioned positioning convex point.
Aforesaid anti-locked vacuum pump, wherein, described middle base bottom surface is depression upwards, around suction port, exhaust port, form a up-small and down-big conical surface, top, described flexible sheet middle part raises up, and forms and this conical surface shape adapting, is distributed with fin longitudinally on this conical surface.
Technical solution of the present invention two: anti-locked vacuum pump comprises: a upper shell, be provided with intakeport and relief opening with external communications, and be concaved with an annular groove around the intakeport inboard, a side of relief opening inside edge offers a groove; One middle base, be embedded at the upper shell below, this middle base is provided with intakeport, relief opening branch and adds corresponding suction port, exhaust port, the middle base below is provided with the fin of a connection suction port and exhaust port lower edge, one side of top, suction port edge offers a groove, and exhaust port is concaved with an annular groove around the top; One non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber is along being respectively equipped with the first non-return valve block, the second non-return valve block with around suction port, the exhaust port corresponding position, first non-return valve block deflection upper shell, one side, second non-return valve block deflection middle base, one side; One pedestal and a flexible sheet, this pedestal is connected in the upper shell below, this flexible sheet is located between this pedestal and the middle base, form an air chamber between this flexible sheet and the middle base, this flexible sheet below formation one convexedly stretches in the connecting rod of pedestal below, this connecting rod is connected with an eccentric wheel by a couple axle, and this eccentric center links to each other with the output shaft of a motor.
Technological scheme two is with the main distinction of technological scheme one: technological scheme two is provided with a fin that is connected suction port and exhaust port lower edge in middle base below, and technological scheme one is provided with the groove of a connection suction port and exhaust port lower edge in the middle base below, though structure difference, but its principle and purpose unanimity, promptly when flexible sheet moves up to the extreme higher position, it is unlikely fits in the middle base below fully and stuck phenomenon occurs.
Technological scheme three of the present invention, be with the main distinction of technological scheme one: the groove that the middle base of technological scheme one below is connected suction port and exhaust port lower edge changes into: be provided with one at the flexible sheet face relative with middle base and be connected the suction port on the middle base and the groove of exhaust port, its purpose is still for when flexible sheet moves up to the extreme higher position, makes it be unlikely to fit in fully and occur stuck phenomenon below the middle base.
Technological scheme four of the present invention, be with the main distinction of technological scheme one: the groove that the middle base of technological scheme one below is connected suction port and exhaust port lower edge changes into: be provided with one at the flexible sheet face relative with middle base and be connected the suction port on the middle base and the fin of exhaust port, its purpose is still for when flexible sheet moves up to the extreme higher position, makes it be unlikely to fit in fully and occur stuck phenomenon below the middle base.
Though above-mentioned four technological scheme structure differences, but its general plotting is identical, that is: between middle base and flexible sheet, spacing means is set, when making flexible sheet move up to the extreme higher position, is unlikely fitting in middle base below fully and stuck phenomenon occurs.
By above-mentioned description to structure of the present invention as can be known, the present invention has following advantage: one, the present invention has overcome the easily stuck difficult problem of vacuum pump by simple, creationary architecture advances, when its flexible sheet moves up to the extreme higher position, can not fit in the middle base below fully and make it stuck phenomenon occur, thereby more convenient to use, need not because stuck and keep in repair; Two, compact structure of the present invention, firm and durable.
Description of drawings
Fig. 1 is the perspective view of the embodiment of the invention one;
Fig. 2 is the three-dimensional explosive view of the embodiment of the invention one;
Fig. 3 is the three-dimensional explosive view of the embodiment of the invention one another angle;
Fig. 4 is the perspective view of the embodiment of the invention one middle base;
Fig. 5 is the perspective view of the embodiment of the invention one another angle of middle base;
Fig. 6 is the perspective view of the embodiment of the invention one upper shell;
Fig. 7 is the perspective view of the embodiment of the invention one non-return sheet rubber;
Fig. 8 is the perspective view of the embodiment of the invention one another angle of non-return sheet rubber;
Fig. 9 is the perspective view of the embodiment of the invention two middle base;
Figure 10 is the perspective view of the embodiment of the invention three flexible sheets;
Figure 11 is the perspective view of the embodiment of the invention four flexible sheets.
Specific embodiment
Specific embodiments of the invention one, referring to figs. 1 through Fig. 8, the vacuum pump that this is anti-locked comprises upper shell 1, non-return sheet rubber 2, middle base 3, flexible sheet 4, pedestal 5, lower shell body 6 and motor 7.
Upper shell 1 is provided with intakeport 101 and the relief opening 102 with external communications.With reference to Fig. 6, intakeport is concaved with an annular groove 103 around 101 inboards, and a side of relief opening 102 inside edges offers a groove 104;
Middle base 3 is embedded at upper shell 1 below, with reference to Fig. 4 and Fig. 5, this middle base 3 is provided with intakeport 101, relief opening and added corresponding suction port 301, exhaust port 302 in 102 minutes, middle base 3 belows are provided with the groove 303 of a connection suction port 301 and exhaust port 302 lower edge, one side of top, suction port 301 edges offers a groove 3010, is concaved with an annular groove 304 around exhaust port 302 tops;
Non-return sheet rubber 2 is located between middle base 3 and the upper shell 1, with reference to Fig. 6, Fig. 7 and Fig. 8, upper shell 1 inner side surface extends to form a localization frame 11 downwards around non-return sheet rubber 2, this localization frame 11 is provided with the positioning convex point 111 that protrudes out in localization frame 11, non-return sheet rubber 2 is embedded in this localization frame 11, its periphery is provided with the location indentations 205 that cooperates with aforementioned positioning convex point 111, these non-return sheet rubber 2 edges and suction port 301, exhaust port 302 corresponding positions offer the first non-return valve block 201 respectively, the second non-return valve block 202, the first non-return valve block, 201 deflection upper shells, 1 one sides, the second non-return valve block, 202 deflection middle base, 3 one sides;
Pedestal 5 is connected in upper shell 1 below, flexible sheet 4 is located between this pedestal 5 and the middle base 3, form an air chamber between this flexible sheet 4 and the middle base 3, this flexible sheet 4 belows formation one convexedly stretches in the connecting rod 40 of pedestal 5 belows, this connecting rod 40 is connected with an eccentric wheel 8 by a bearing 42 and a couple axle 43, the center of this eccentric wheel 8 links to each other with the output shaft 71 of a motor 7, and motor 7 external packets are covered with a motor case 70, and this motor case 70 is connected in pedestal 5 one sides by upper/lower positions;
With reference to Fig. 4, middle base 3 bottom surfaces are depression upwards, forms a up-small and down-big conical surface 30 around its suction port 301, exhaust port 320, and top, flexible sheet 4 middle parts raises up, form and these conical surface 30 shape adapting, be evenly distributed with fin 32 longitudinally on this conical surface 30;
Lower shell body 6 is connected in pedestal 5 belows, and the connecting rod 40 of flexible sheet 4 belows and couple axle 43, eccentric wheel 8 are surrounded in it.
With reference to Fig. 2, Fig. 3, upper shell 1 bottom peripheral edge is provided with the positioning rod 12 of some downward extensions, positioning rod 12 bottoms are provided with tapped hole 121, pedestal 5 marginal positions are provided with the through hole 52 that passes for each positioning rod 12, lower shell body 6 upper end portion peripheries are provided with the cylindrical groove 62 that embeds for each positioning rod 12 end, each cylindrical groove 62 is provided with the screw hole 620 that communicates with lower shell body 6 lower surfaces, be combined with a screw 621 in each screw hole 620, each screw 621 screws in respectively in the tapped hole 121 of each positioning rod 12 bottom, so that upper shell 1, pedestal 5, lower shell body 6 are connected to one.
Upper shell 1, non-return sheet rubber 2, middle base 3 threes form the mobile effect of gas unidirectional of intakeport 101, relief opening 102, promptly when motor 7 drives flexible sheet 4 middle part knee-actions by eccentric wheel 8, gas can only enter described air chamber from intakeport 101, and can only discharge from relief opening 102; When the groove 303 that middle base 3 belows connect suction port 301 and exhaust port 302 lower edge makes flexible sheet 4 move up to the extreme higher position, can not fit in the below of upper shell 1 fully and make it stuck phenomenon occur.
Specific embodiments of the invention two, with reference to Fig. 9, be stand structure in the middle of it, be with embodiment one the main distinction: what be connected suction port 301 and exhaust port 302 lower edge in the enforcement one is groove 303, and what connect suction port 301 and exhaust port 302 lower edge among the embodiment two is fin 305, its purpose is identical, all is when making flexible sheet 4 move up to the extreme higher position, can not fit in the below of upper shell 1 fully and makes it stuck phenomenon occur.Groove 303, fin 305 is the anti-jamming important structure of the present invention, but is not limited thereto, as it being changed into other equivalent structure such as salient point.
Technological scheme three of the present invention, with reference to Figure 10, perspective view for its flexible sheet 4, be with the main distinction of technological scheme one: the groove 303 that middle base 3 belows of technological scheme one are connected suction port 301 and exhaust port 302 lower edge changes the groove that is located at the relative face of flexible sheet 4 and middle base 3 into, this groove is used to connect suction port 301 and the exhaust port 302 on the middle base 3 equally, its purpose is still for when flexible sheet 4 moves up to the extreme higher position, it is unlikely fits in middle base 3 belows fully and stuck phenomenon occurs.
Technological scheme four of the present invention, with reference to Figure 11, perspective view for its flexible sheet 4, be with the main distinction of technological scheme one: the groove 303 that middle base 3 belows of technological scheme one are connected suction port 301 and exhaust port 302 lower edge changes the fin that is located on the relative face of flexible sheet 4 and middle base 3 into, this fin is used to connect suction port 301 and the exhaust port 302 on the middle base 3 equally, its purpose is still for when flexible sheet 4 moves up to the extreme higher position, it is unlikely fits in middle base 3 belows fully and stuck phenomenon occurs.Aforementioned groove 303, fin 305 are the anti-jamming important structure of vacuum pump of the present invention, but are not limited thereto, and its concrete shape can have multiple variation, as lineal shape, curvilinerar figure etc., also it can be changed into other equivalent structures such as salient point.
Above-mentioned only is several specific embodiment of the present invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.

Claims (9)

1. anti-locked vacuum pump comprises:
One upper shell is provided with intakeport and relief opening with external communications, is concaved with an annular groove around the intakeport inboard, and a side of relief opening inside edge offers a groove;
One middle base, be embedded at the upper shell below, this middle base is provided with intakeport, relief opening branch and adds corresponding suction port, exhaust port, the middle base below is provided with the groove of a connection suction port and exhaust port lower edge, one side of top, suction port edge offers a groove, and exhaust port is concaved with an annular groove around the top;
One non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber is along being respectively equipped with the first non-return valve block, the second non-return valve block with around suction port, the exhaust port corresponding position, first non-return valve block deflection upper shell, one side, second non-return valve block deflection middle base, one side;
One pedestal and a flexible sheet, this pedestal is connected in the upper shell below, this flexible sheet is located between this pedestal and the middle base, form an air chamber between this flexible sheet and the middle base, this flexible sheet below formation one convexedly stretches in the connecting rod of pedestal below, this connecting rod is connected with an eccentric wheel by a couple axle, and this eccentric center links to each other with the output shaft of a motor.
2. anti-locked vacuum pump as claimed in claim 1, wherein, the two sides of non-return sheet rubber convexes with the potted line that it is centered on around two non-return valve blocks.
3. anti-locked vacuum pump as claimed in claim 1 further comprises:
One motor case is connected in pedestal one side by upper/lower positions, and described motor is installed in this motor case;
One lower shell body is connected in pedestal below, and the connecting rod of described flexible sheet below and couple axle, eccentric wheel are surrounded in it.
4. anti-locked vacuum pump as claimed in claim 3, wherein, the upper shell bottom peripheral edge is provided with the positioning rod of some downward extensions, the positioning rod bottom is provided with tapped hole, the susceptor edges position is provided with the through hole that passes for each positioning rod, lower shell body upper end portion periphery is provided with the cylindrical groove that embeds for each positioning rod end, each cylindrical groove is provided with the screw hole that communicates with the lower shell body lower surface, be combined with a screw in each screw hole, each screw screws in respectively in the tapped hole of each positioning rod bottom, so that upper shell, pedestal, lower shell body are connected to one.
5. anti-locked vacuum pump as claimed in claim 1, wherein, the upper shell inner side surface extends to form a localization frame downwards around described non-return sheet rubber, this localization frame is provided with the positioning convex point that protrudes out in localization frame, described non-return sheet rubber is embedded in this localization frame, and its periphery is provided with the location indentations that cooperates with aforementioned positioning convex point.
6. anti-locked vacuum pump as claimed in claim 1, wherein, described middle base bottom surface is depression upwards, around suction port, exhaust port, form a up-small and down-big conical surface, top, described flexible sheet middle part raises up, form and this conical surface shape adapting, be distributed with fin longitudinally on this conical surface.
7. anti-locked vacuum pump comprises:
One upper shell is provided with intakeport and relief opening with external communications, is concaved with an annular groove around the intakeport inboard, and a side of relief opening inside edge offers a groove;
One middle base, be embedded at the upper shell below, this middle base is provided with intakeport, relief opening branch and adds corresponding suction port, exhaust port, the middle base below is provided with the fin of a connection suction port and exhaust port lower edge, one side of top, suction port edge offers a groove, and exhaust port is concaved with an annular groove around the top;
One non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber is along being respectively equipped with the first non-return valve block, the second non-return valve block with around suction port, the exhaust port corresponding position, first non-return valve block deflection upper shell, one side, second non-return valve block deflection middle base, one side;
One pedestal and a flexible sheet, this pedestal is connected in the upper shell below, this flexible sheet is located between this pedestal and the middle base, form an air chamber between this flexible sheet and the middle base, this flexible sheet below formation one convexedly stretches in the connecting rod of pedestal below, this connecting rod is connected with an eccentric wheel by a couple axle, and this eccentric center links to each other with the output shaft of a motor.
8. anti-locked vacuum pump comprises:
One upper shell is provided with intakeport and relief opening with external communications, is concaved with an annular groove around the intakeport inboard, and a side of relief opening inside edge offers a groove;
One middle base is embedded at the upper shell below, and this middle base is provided with intakeport, relief opening branch and adds corresponding suction port, exhaust port, and a side of top, suction port edge offers a groove, and exhaust port is concaved with an annular groove around the top;
One non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber is along being respectively equipped with the first non-return valve block, the second non-return valve block with around suction port, the exhaust port corresponding position, first non-return valve block deflection upper shell, one side, second non-return valve block deflection middle base, one side;
One pedestal and a flexible sheet, this pedestal is connected in the upper shell below, this flexible sheet is located between this pedestal and the middle base, form an air chamber between this flexible sheet and the middle base, the face that this flexible sheet is relative with middle base is provided with one and connects the suction port on the middle base and the groove of exhaust port, this flexible sheet below formation one convexedly stretches in the connecting rod of pedestal below, and this connecting rod is connected with an eccentric wheel by a couple axle, and this eccentric center links to each other with the output shaft of a motor.
9. anti-locked vacuum pump comprises:
One upper shell is provided with intakeport and relief opening with external communications, is concaved with an annular groove around the intakeport inboard, and a side of relief opening inside edge offers a groove;
One middle base is embedded at the upper shell below, and this middle base is provided with intakeport, relief opening branch and adds corresponding suction port, exhaust port, and a side of top, suction port edge offers a groove, and exhaust port is concaved with an annular groove around the top;
One non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber is along being respectively equipped with the first non-return valve block, the second non-return valve block with around suction port, the exhaust port corresponding position, first non-return valve block deflection upper shell, one side, second non-return valve block deflection middle base, one side;
One pedestal and a flexible sheet, this pedestal is connected in the upper shell below, this flexible sheet is located between this pedestal and the middle base, form an air chamber between this flexible sheet and the middle base, the face that this flexible sheet is relative with middle base is provided with one and connects the suction port on the middle base and the fin of exhaust port, this flexible sheet below formation one convexedly stretches in the connecting rod of pedestal below, and this connecting rod is connected with an eccentric wheel by a couple axle, and this eccentric center links to each other with the output shaft of a motor.
CNB2005100421444A 2005-03-10 2005-03-10 Vacuum pump capable of block Active CN100406731C (en)

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Application Number Priority Date Filing Date Title
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CN100406731C true CN100406731C (en) 2008-07-30

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101636585B (en) * 2007-03-13 2012-02-22 美德乐控股公司 Vacuum diaphragm pump unit
CN101372957B (en) * 2007-08-24 2012-06-20 张坤林 Anti-locked air pump
CN103405927B (en) * 2013-08-26 2016-01-27 樊书印 One is bolted wheel
CN103405923B (en) * 2013-08-26 2016-04-27 邢皓宇 One is bolted wheel

Citations (7)

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Publication number Priority date Publication date Assignee Title
US4137020A (en) * 1976-12-26 1979-01-30 Nippondenso Co., Ltd. Diaphragm type air pump
JPS6419191A (en) * 1987-07-14 1989-01-23 Nagano Keiki Seisakusho Kk Vacuum pump
CN1382909A (en) * 2001-04-24 2002-12-04 松下电工株式会社 Pump and its mfg. method
JP2003035264A (en) * 2001-07-24 2003-02-07 Matsushita Electric Ind Co Ltd Small pump and driving method thereof
JP2003042072A (en) * 2001-07-27 2003-02-13 Techno Takatsuki Co Ltd Electromagnetic vibratory pump
CN1539061A (en) * 2000-10-18 2004-10-20 托马斯工业股份有限公司 Diaphragm pump with support ring
CN2837554Y (en) * 2005-03-10 2006-11-15 张坤林 Vacuum pump capable of preventing jam

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137020A (en) * 1976-12-26 1979-01-30 Nippondenso Co., Ltd. Diaphragm type air pump
JPS6419191A (en) * 1987-07-14 1989-01-23 Nagano Keiki Seisakusho Kk Vacuum pump
CN1539061A (en) * 2000-10-18 2004-10-20 托马斯工业股份有限公司 Diaphragm pump with support ring
CN1382909A (en) * 2001-04-24 2002-12-04 松下电工株式会社 Pump and its mfg. method
JP2003035264A (en) * 2001-07-24 2003-02-07 Matsushita Electric Ind Co Ltd Small pump and driving method thereof
JP2003042072A (en) * 2001-07-27 2003-02-13 Techno Takatsuki Co Ltd Electromagnetic vibratory pump
CN2837554Y (en) * 2005-03-10 2006-11-15 张坤林 Vacuum pump capable of preventing jam

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