CN2837554Y - Vacuum pump capable of preventing jam - Google Patents
Vacuum pump capable of preventing jam Download PDFInfo
- Publication number
- CN2837554Y CN2837554Y CN 200520080875 CN200520080875U CN2837554Y CN 2837554 Y CN2837554 Y CN 2837554Y CN 200520080875 CN200520080875 CN 200520080875 CN 200520080875 U CN200520080875 U CN 200520080875U CN 2837554 Y CN2837554 Y CN 2837554Y
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- CN
- China
- Prior art keywords
- middle base
- upper shell
- flexible sheet
- pedestal
- return
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a vacuum pump capable of preventing jam which mainly comprises an upper shell body, a middle seat, a non-return rubber sheet arranged between the middle seat and the upper shell body in a clamping mode, a base and an elastic membrane, wherein the elastic membrane is arranged between the middle seat and the base in a clamping mode. The utility model is mainly characterized in that a gap structure is arranged between the middle seat and the elastic membrane; the gap structure is connected with an air suction hole and a vent hole on the middle seat; the gap structure aims to make the elastic membrane not completely attached to the lower part of the middle seat to generate a phenomenon of jam when the elastic membrane makes upward movement to a highest position.
Description
Technical field
The utility model relates to and is used for vacuum pump, specifically is 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.
The model utility content
The utility model provides a kind of anti-locked vacuum pump, and 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 solutions of the utility model one: a kind of anti-locked vacuum pump, comprise a upper shell, a middle base, a non-return sheet rubber, a pedestal and a flexible sheet, this upper shell is provided with intakeport and the relief opening with external communications, be concaved with an annular groove around the intakeport inboard, a side of relief opening inside edge offers a groove; Middle base is 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; The non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber along be respectively equipped with first around suction port, the exhaust port corresponding position and block back valve block, the second non-return valve block, the first non-return valve block is partial to upper shell one side, the second non-return valve block is partial to middle base one side; 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, the two sides of its 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, its 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, its 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, its middle base bottom surface is depression upwards, forms a up-small and down-big conical surface around suction port, exhaust port, and top, described flexible sheet middle part raises up, form and this conical surface shape adapting, be distributed with fin longitudinally on this conical surface.
Technical solutions of the utility model two: a kind of anti-locked vacuum pump, comprise a upper shell, a middle base, a non-return sheet rubber, a pedestal and a flexible sheet, this upper shell is provided with intakeport and the relief opening with external communications, be concaved with an annular groove around the intakeport inboard, a side of relief opening inside edge offers a groove; Middle base is 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; The non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber along be respectively equipped with first around suction port, the exhaust port corresponding position and block back valve block, the second non-return valve block, the first non-return valve block is partial to upper shell one side, the second non-return valve block is partial to middle base one side; 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.
The technical solution of the utility model three, 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 in the flexible sheet side 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.
The technical solution of the utility model four, 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 in the flexible sheet side 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 the utility model structure as can be known, the utlity model has following advantage: one, the utility model 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 upper shell below fully and make it stuck phenomenon occur, thereby more convenient to use, need not because stuck and keep in repair; Two, the utility model compact structure, firm and durable.
Description of drawings
Fig. 1 is the utility model embodiment one a perspective view;
Fig. 2 is three-dimensional explosive view of the utility model embodiment one;
Fig. 3 is the three-dimensional explosive view of the utility model embodiment one another angle;
Fig. 4 is the perspective view of the utility model embodiment one middle base;
Fig. 5 is the perspective view of the utility model embodiment one another angle of middle base;
Fig. 6 is the perspective view of the utility model embodiment one upper shell;
Fig. 7 is the perspective view of the utility model embodiment one non-return sheet rubber;
Fig. 8 is the perspective view of the utility model embodiment one another angle of non-return sheet rubber;
Fig. 9 is the perspective view of the utility model embodiment two middle base;
Figure 10 is the perspective view of the utility model embodiment three flexible sheets;
Figure 11 is the perspective view of the utility model embodiment four flexible sheets.
Specific embodiment
Specific embodiment of the utility model 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;
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 embodiment of the utility model 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 are the anti-jamming important structure of the utility model, but are not limited thereto, as it being changed into other equivalent structures such as salient point.
The technical solution of the utility model three, 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 401 that is located at the relative side of flexible sheet 4 and middle base 3 into, this groove 401 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.
The technical solution of the utility model four, 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 402 that is located on the relative side 4 of flexible sheet 4 and middle base 3 into, this fin 402 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 303,401, fin 305,402 are the anti-jamming important structure of the utility model vacuum pump, 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 utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (9)
1, a kind of anti-locked vacuum pump, it is characterized in that: comprise a upper shell, a middle base, a non-return sheet rubber, a pedestal and a flexible sheet, this upper shell is provided with intakeport and the relief opening with external communications, be concaved with an annular groove around the intakeport inboard, a side of relief opening inside edge offers a groove; Middle base is 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; The non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber along be respectively equipped with first around suction port, the exhaust port corresponding position and block back valve block, the second non-return valve block, the first non-return valve block is partial to upper shell one side, the second non-return valve block is partial to middle base one side; 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, a kind of anti-locked vacuum pump as claimed in claim 1 is characterized in that: 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, a kind of anti-locked vacuum pump as claimed in claim 1 is characterized in that: also comprise: a motor case and a lower shell body, this motor case are connected in pedestal one side by upper/lower positions, and described motor is installed in this motor case; This 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, a kind of anti-locked vacuum pump as claimed in claim 3, it is characterized in that: 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, a kind of anti-locked vacuum pump as claimed in claim 1, it is characterized in that: 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, a kind of anti-locked vacuum pump as claimed in claim 1, it is characterized in that: 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, a kind of anti-locked vacuum pump, it is characterized in that: comprise a upper shell, a middle base, a non-return sheet rubber, a pedestal and a flexible sheet, this upper shell is provided with intakeport and the relief opening with external communications, be concaved with an annular groove around the intakeport inboard, a side of relief opening inside edge offers a groove; Middle base is 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; This non-return sheet rubber is located between middle base and the upper shell, this non-return sheet rubber along be respectively equipped with first around suction port, the exhaust port corresponding position and block back valve block, the second non-return valve block, first non-return valve block deflection upper shell, one side, second non-return valve block deflection middle base, one side; 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, a kind of anti-locked vacuum pump, it is characterized in that: comprise a upper shell, a middle base, a non-return sheet rubber, a pedestal and a flexible sheet, this upper shell is provided with intakeport and the relief opening with external communications, be concaved with an annular groove around the intakeport inboard, a side of relief opening inside edge offers a groove; This 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; This non-return sheet rubber, be located between middle base and the upper shell, this non-return sheet rubber along be respectively equipped with first around suction port, the exhaust port corresponding position and block back valve block, the second non-return valve block, the first non-return valve block is partial to upper shell one side, the second non-return valve block is partial to middle base one side; 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 side 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, 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, a kind of anti-locked vacuum pump, it is characterized in that: comprise a upper shell, a middle base, a non-return sheet rubber, a pedestal and a flexible sheet, this upper shell is provided with intakeport and the relief opening with external communications, be concaved with an annular groove around the intakeport inboard, a side of relief opening inside edge offers a groove; This 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; This non-return sheet rubber is located between middle base and the upper shell, this non-return sheet rubber along be respectively equipped with first around suction port, the exhaust port corresponding position and block back valve block, the second non-return valve block, first non-return valve block deflection upper shell, one side, second non-return valve block deflection middle base, one side; 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 side 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, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080875 CN2837554Y (en) | 2005-03-10 | 2005-03-10 | Vacuum pump capable of preventing jam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080875 CN2837554Y (en) | 2005-03-10 | 2005-03-10 | Vacuum pump capable of preventing jam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837554Y true CN2837554Y (en) | 2006-11-15 |
Family
ID=37392039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520080875 Expired - Lifetime CN2837554Y (en) | 2005-03-10 | 2005-03-10 | Vacuum pump capable of preventing jam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2837554Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406731C (en) * | 2005-03-10 | 2008-07-30 | 张坤林 | Vacuum pump capable of block |
| CN102216621A (en) * | 2008-11-20 | 2011-10-12 | 约马-综合技术有限公司 | Vacuum pump |
| WO2013029532A1 (en) * | 2011-08-29 | 2013-03-07 | 厦门科际精密器材有限公司 | Fluid-guiding device capable of controlling air flow for micro pump |
-
2005
- 2005-03-10 CN CN 200520080875 patent/CN2837554Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406731C (en) * | 2005-03-10 | 2008-07-30 | 张坤林 | Vacuum pump capable of block |
| CN102216621A (en) * | 2008-11-20 | 2011-10-12 | 约马-综合技术有限公司 | Vacuum pump |
| WO2013029532A1 (en) * | 2011-08-29 | 2013-03-07 | 厦门科际精密器材有限公司 | Fluid-guiding device capable of controlling air flow for micro pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080730 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |