CN102943770B - Connecting device for front and rear net covers of fan, and connecting column in device - Google Patents
Connecting device for front and rear net covers of fan, and connecting column in device Download PDFInfo
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- CN102943770B CN102943770B CN201210394644.4A CN201210394644A CN102943770B CN 102943770 B CN102943770 B CN 102943770B CN 201210394644 A CN201210394644 A CN 201210394644A CN 102943770 B CN102943770 B CN 102943770B
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Abstract
The invention discloses a connecting device for front and rear net covers of a fan and a connecting column in the device, wherein the connecting device for the front and rear net covers of the fan comprises a first et cover fixing ring, a second net cover fixing ring and at least two connecting columns; the connecting column comprises a column head fixedly connected with the first net cover fixing ring, a column cap in stop cooperation with the second net cover fixing ring, and a column body arranged between the column head and the column cap; the column body comprises a fixing part fixedly connected with the column head, a spring which is arranged at the fixing part and stretched or retracted along the radial direction of the column body, and a moveable part which is in telescopic cooperation with the fixing part along the radial direction of the column body by the spring; the length of the column body is not smaller than the thickness of the second net cover fixing ring; long holes are formed on the second net cover fixing ring; i an inlet hole for the penetration of the column cap and the column body is formed at one end of the long hole, and t a clamping hole with the diameter larger than the minimum diameter of the column body and smaller than the diameter of the column cap is formed at the other end; and a part between the inlet hole and the clamping hole is communicated with an arc hole with the width wider than the minimum diameter of the column body and smaller than the diameter of the clamping hole.
Description
Technical field
The present invention relates to the connection post in guard coupling gear and this device before and after a kind of fan.
Background technique
The guard of fan has the effect of protection personal safety and protection flabellum, and therefore before and after fan, guard coupling gear is extremely important, and its bind mode also determines the size of fan noise when rotating.
Before and after existing fan, the coupling gear of guard mainly comprises plastic ring mechanism and hasp mechanism.Plastic ring mechanism is that guard junction is around a circle plastic ring before and after fan, and then fixed by plastic button, plastic ring mechanism structure is simple, but installs inconvenient, and plastic materials is easily aging in Long-Time Service process; Hasp mechanism is installation activity hasp on a fan screen edge wherein, is fixed, although hasp mechanism is durable, in use easily occur fastening not tight problem by the mode that fastens and another guard.
Summary of the invention
The object of the present invention is to provide guard coupling gear before and after a kind of fan, inconvenience is installed to solve fan screen, connects not fastening problem; Meanwhile, present invention also offers the connection post before and after this fan in guard coupling gear.
For achieving the above object, before and after fan of the present invention, guard coupling gear adopts following technological scheme: guard coupling gear before and after fan, comprise and be connected in first before and after fan around guard respectively, second guard retainer ring, before and after described fan, guard coupling gear also comprises for connecting described first and second guard retainer rings, and be at least the connection post of two, connection post comprises the column cap for being fixedly connected with the first guard retainer ring, for the cap coordinated with the second guard retainer ring block and the cylinder arranged between column cap and cap, described cylinder comprises the fixing part be fixedly connected with column cap, by the active part coordinated along the radial movable telescopic of cylinder with fixing part along the spring of cylinder radial expansion, under the telescopic action of described spring, minimum diameter when maximum diameter when cylinder has a spring elongation and spring tighten, the diameter of described cap is greater than the maximum diameter of described cylinder, the length of described cylinder is not less than the thickness of the second guard retainer ring, described second guard retainer ring offers equal with connecting post quantity, along second guard retainer ring circumference equally distributed elongated hole, one end of described elongated hole is provided with the access aperture of passing for cap and cylinder, the other end is provided with diameter and is greater than cylinder minimum diameter and the hole clipping being less than cap diameter, part between access aperture and hole clipping is communicated with the arcuate socket extended in the second guard retainer ring circumference, and the width of this arcuate socket is more than or equal to the minimum diameter of cylinder and is less than the diameter of hole clipping.
Before and after described fan, guard coupling gear also comprises the ring cushion rubber between first, second guard retainer ring, part on connection post between column cap and cylinder is provided with annular boss, the thickness of this annular boss equals the thickness of cushion rubber, described cushion rubber is provided with the uniform hole with annular boss equal diameters, and the quantity in described uniform hole is equal with the quantity of connection post and be uniformly distributed along cushion rubber circumference.
The section of described fixing part is provided with positioning and guiding boss, the corresponding positioning hole be provided with for the embedding of positioning and guiding boss on described active part, described positioning and guiding boss center is provided with tapped hole, described positioning hole is shoulder hole and is through hole, Anti-off bolt is coated with in described positioning hole, the nut portion of this bolt coordinates with the macropore section of positioning hole, and the shaft of bolt passes the aperture section of positioning hole and coordinates with the tapped hole at described positioning and guiding boss center.
Described spring is two, and is separately positioned on the both sides of positioning and guiding boss along the axis connecting post.
Described cap comprises the stationary part be fixedly connected with cylinder fixing part and the moving part be fixedly connected with cylinder active part.
On described second guard retainer ring, the diameter of access aperture equals the diameter of described cap, the width of described arcuate socket equals the minimum diameter of described cylinder, the diameter of described hole clipping is greater than the minimum diameter of cylinder and is less than the maximum diameter of cylinder, and the thickness of described second guard retainer ring equals the length of described cylinder
Connection post of the present invention is by the following technical solutions: connection post, comprise the column cap for being fixedly connected with the first guard retainer ring, for the cap coordinated with the second guard retainer ring block and the cylinder arranged between column cap and cap, the diameter of described cap is greater than the diameter of described cylinder, described cylinder comprise be fixedly connected with column cap fixing part, be arranged on along the spring of cylinder radial expansion and active part that is radial along cylinder by spring and fixing part expansion fit on fixing part, minimum diameter when maximum diameter when cylinder has a spring elongation and spring tighten.
The section of described fixing part is provided with positioning and guiding boss, the corresponding positioning hole be provided with for the embedding of positioning and guiding boss on described active part, described positioning and guiding boss center is provided with tapped hole, described positioning hole is shoulder hole and is through hole, Anti-off bolt is coated with in described positioning hole, the nut portion of this bolt coordinates with the macropore section of positioning hole, and the shaft of bolt passes the aperture section of positioning hole and coordinates with the tapped hole at described positioning and guiding boss center.
Described spring is two, and is separately positioned on the both sides of positioning and guiding boss along the axis connecting post.
Described cap comprises the stationary part be fixedly connected with cylinder fixing part and the moving part be fixedly connected with cylinder active part.
Before and after fan of the present invention, guard fixing device in use, first the column cap of connection post is fixedly connected on the first guard retainer ring, then by the cap arrival columnar part of the access aperture of elongated hole on the second guard retainer ring through connection post, rotating the second guard retainer ring makes cylinder from the access aperture port ons of elongated hole to arcuate socket part, continuing rotation second guard retainer ring makes the cylinder of connection post enter in the hole clipping of elongated hole by arcuate socket, width due to arcuate socket is less than the diameter of hole clipping, the active part of cylinder and fixing part separate under the elastic force active force of spring, cylinder is made to be stuck in the hole clipping of elongated hole, thus complete the fixing of guard before and after fan.Before and after fan of the present invention, guard fixing device makes guard fitting operation before and after fan simple, and fastening, the stable performance of guard connection before and after fan.
Further, when the cushion rubber arranged between two guard retainer rings is conducive to reducing fan turns, the vibration of fan screen retainer ring, reduces noise.
Further, the positioning and guiding boss that connection post cylinder fixing part is arranged can embed the positioning hole on active part, thus plays positioning action to active part, is coated with the bolt coordinated with tapped hole and can prevents from active part from departing from connecting post in positioning hole.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of embodiment of guard coupling gear before and after fan of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to zoomed-in view;
Fig. 4 connects schematic diagram when post has a minimum diameter in Fig. 1;
Fig. 5 is the schematic diagram of the second guard retainer ring in Fig. 1;
Fig. 6 is the enlarged view of part B in Fig. 5;
Fig. 7 is the schematic perspective view connecting post in Fig. 1.
Embodiment
Before and after fan of the present invention, a kind of embodiment of guard coupling gear as shown in Figures 1 to 7, comprise and be connected in first before and after fan around guard respectively, second guard retainer ring 1, 2 with the connection post 3 for being connected described first and second guard retainer rings, also comprise and be arranged on first, second guard retainer ring 1, ring apron 4 between 2, totally four, connection post 3 in the present embodiment, connection post 3 comprises the column cap 31 for being fixedly connected with the first guard retainer ring 1, for the cap 32 coordinated with the second guard retainer ring 2 block and the cylinder 33 arranged between column cap 31 and cap 32, part between column cap 31 and cylinder 33 is provided with annular boss 34, cylinder 33 comprises the fixing part be fixedly connected with column cap 31, be arranged on fixing part along the spring 35 of cylinder 31 radial expansion and active part that is radial along cylinder 33 by spring 35 and fixing part expansion fit, the section of cylinder 33 fixing part is provided with positioning and guiding boss, the corresponding positioning hole be provided with for the embedding of positioning and guiding boss on cylinder 33 active part, positioning and guiding boss center is provided with tapped hole, positioning hole is shoulder hole and is through hole, Anti-off bolt 36 is coated with in positioning hole, the nut portion of Anti-off bolt 36 coordinates with the macropore section of positioning hole, the shaft of Anti-off bolt 36 passes the aperture section of positioning hole and coordinates with the tapped hole at positioning and guiding boss center, spring 35 in the present embodiment is two and is separately positioned on the both sides of positioning and guiding boss along the axis of cylinder 33, under the telescopic action of spring 35, cylinder 33 has minimum diameter when maximum diameter when spring 35 stretches and spring 35 tighten, the diameter of described cap 32 is greater than the maximum diameter of cylinder 33, the cap 32 of the present embodiment comprises the stationary part be fixedly connected with cylinder 33 fixing part and the moving part be fixedly connected with cylinder 33 active part, the length of the present embodiment middle column body 33 equals the thickness of the second guard retainer ring 2, second guard retainer ring 2 offers four along the circumferential equally distributed elongated hole 5 of the second guard retainer ring 2, one end of elongated hole 5 is provided with the access aperture 51 of passing for cap 31 and cylinder 33, the other end is provided with hole clipping 52, the diameter of hole clipping 52 is greater than the minimum diameter of cylinder 33, be less than the maximum diameter of cylinder 33, the diameter of access aperture 51 equals the diameter of cap 32, part between access aperture 51 and hole clipping 52 is communicated with the arcuate socket 53 extended in the second guard retainer ring 2 circumference, the width of this arcuate socket 53 equals the minimum diameter of cylinder 33, the circumference of cushion rubber 4 is evenly distributed with four uniform holes, the thickness of cushion rubber 4 equals the thickness of annular boss 34.
Before and after fan of the present invention, guard fixing device in use, first the column cap 31 of connection post 3 is fixedly connected on the first guard retainer ring 1, then the uniform hole correspondence on cushion rubber 4 is set on annular boss 34 place of connection post 3, and then the access aperture of elongated hole on the second guard retainer ring 2 is arrived cylinder 33 part through the cap 32 connecting post 3, rotating the second guard retainer ring 2 makes cylinder 33 from access aperture 51 port ons of elongated hole 5 to arcuate socket 53 part, continuing rotation second guard retainer ring 3 makes the cylinder 33 of connection post 3 enter in the hole clipping 52 of elongated hole 5 by arcuate socket 53, width due to arcuate socket 53 is less than the diameter of hole clipping 52, the active part of cylinder 33 and fixing part separate under the elastic force active force of spring, cylinder 33 is made to be stuck in the hole clipping 52 of elongated hole 5, thus complete the fixing of guard before and after fan.Cushion rubber is arranged on the vibration of fan screen retainer ring when being conducive to reducing fan turns between two guard retainer rings, reduces noise; The positioning and guiding boss be provided with of connection post fixing part can embed the positioning hole on active part, thus plays positioning action to active part, is coated with the bolt coordinated with tapped hole and can prevents from active part from departing from connecting post in positioning hole.Before and after fan of the present invention, guard fixing device makes guard fitting operation before and after fan simple, and fastening, the stable performance of guard connection before and after fan.
Before and after fan of the present invention guard coupling gear other embodiment in, elongated hole on guard retainer ring quantity also can not be four, as long as be at least two and be evenly distributed on guard retainer ring, accordingly, the quantity of connection post is equal with the quantity of elongated hole, and on cushion rubber, the quantity in uniform hole is equal with the quantity of elongated hole and be evenly distributed on cushion rubber.
Before and after fan of the present invention guard coupling gear other embodiment in, between two fan screen retainer rings, also can not cushion rubber be set, accordingly, connection post on do not need to arrange annular boss yet.
Before and after fan of the present invention guard coupling gear other embodiment in, positioning and guiding boss can be arranged on the active part of cylinder, and accordingly, positioning hole is arranged on the fixing part of cylinder; Positioning and guiding boss also can be arranged on cap stationary part or, accordingly, positioning hole is arranged on the moving part of cap; Positioning and guiding boss also can be arranged on the moving part of cap, and now, positioning hole is arranged in the stationary part of cap.
Before and after fan of the present invention guard coupling gear other embodiment in, the quantity of spring is at least one, can not be distributed in the both sides of positioning and guiding boss; Spring also can be arranged between the stationary part of cap and moving part.
Before and after fan of the present invention guard coupling gear other embodiment in, connection post on also positioning and guiding boss and positioning hole can not be set.
Before and after fan of the present invention guard coupling gear other embodiment in, cap also can not be divided into stationary part and moving part, and cap also can be the integrative-structure that is fixedly connected with cylinder.
Before and after fan of the present invention guard coupling gear other embodiment in, on the second guard retainer ring, the diameter of access aperture can be not equal to the diameter of cap, and the diameter of access aperture also can be greater than the diameter of cap, as long as cap can be made to penetrate access aperture; The width of arcuate socket can be not equal to the minimum diameter of cylinder, and the width of arcuate socket also can be greater than the minimum diameter of cylinder and be less than the diameter of hole clipping; The diameter of hole clipping can be not less than the maximum diameter of cylinder, and the diameter of hole clipping also can be greater than the minimum diameter of cylinder and be less than the diameter of cap; The thickness of the second guard retainer ring can be not equal to the length of described cylinder, and the thickness of the second guard retainer ring also can be greater than the length of cylinder.
The present invention connects that to connect columniation structure in the embodiment of post and the embodiment of guard fixing device before and after fan of the present invention identical, does not repeat them here.
Claims (9)
1. guard coupling gear before and after fan, comprise and be connected in first before and after fan around guard respectively, second guard retainer ring, it is characterized in that: before and after described fan, guard coupling gear also comprises for connecting described first and second guard retainer rings, and be at least the connection post of two, connection post comprises the column cap for being fixedly connected with the first guard retainer ring, for the cap coordinated with the second guard retainer ring block and the cylinder arranged between column cap and cap, described cylinder comprises the fixing part be fixedly connected with column cap, by the active part coordinated along the radial movable telescopic of cylinder with fixing part along the spring of cylinder radial expansion, under the telescopic action of described spring, minimum diameter when maximum diameter when cylinder has a spring elongation and spring tighten, the diameter of described cap is greater than the maximum diameter of described cylinder, the length of described cylinder is not less than the thickness of the second guard retainer ring, described second guard retainer ring offers equal with connecting post quantity, along second guard retainer ring circumference equally distributed elongated hole, one end of described elongated hole is provided with the access aperture of passing for cap and cylinder, the other end is provided with diameter and is greater than cylinder minimum diameter and the hole clipping being less than cap diameter, part between access aperture and hole clipping is communicated with the arcuate socket extended in the second guard retainer ring circumference, and the width of this arcuate socket is more than or equal to the minimum diameter of cylinder and is less than the diameter of hole clipping.
2. guard coupling gear before and after fan according to claim 1, it is characterized in that: before and after described fan, guard coupling gear also comprises the ring cushion rubber between first, second guard retainer ring, part on connection post between column cap and cylinder is provided with annular boss, the thickness of this annular boss equals the thickness of cushion rubber, described cushion rubber is provided with the uniform hole with annular boss equal diameters, and the quantity in described uniform hole is equal with the quantity of connection post and be uniformly distributed along cushion rubber circumference.
3. guard coupling gear before and after fan according to claim 1, it is characterized in that: the section of described fixing part is provided with positioning and guiding boss, the corresponding positioning hole be provided with for the embedding of positioning and guiding boss on described active part, described positioning and guiding boss center is provided with tapped hole, described positioning hole is shoulder hole and is through hole, Anti-off bolt is coated with in described positioning hole, the nut portion of this bolt coordinates with the macropore section of positioning hole, and the shaft of bolt passes the aperture section of positioning hole and coordinates with the tapped hole at described positioning and guiding boss center.
4. guard coupling gear before and after fan according to claim 3, is characterized in that: described spring is two, and is separately positioned on the both sides of positioning and guiding boss along the axis connecting post.
5. guard coupling gear before and after the fan according to Claims 1-4 any one, is characterized in that: described cap comprises the stationary part be fixedly connected with cylinder fixing part and the moving part be fixedly connected with cylinder active part.
6. guard coupling gear before and after the fan according to Claims 1-4 any one, it is characterized in that: on described second guard retainer ring, the diameter of access aperture equals the diameter of described cap, the width of described arcuate socket equals the minimum diameter of described cylinder, the diameter of described hole clipping is greater than the minimum diameter of cylinder and is less than the maximum diameter of cylinder, and the thickness of described second guard retainer ring equals the length of described cylinder.
7. connect post, it is characterized in that: described connection post comprises column cap for being fixedly connected with the first guard retainer ring, for the cap coordinated with the second guard retainer ring block and the cylinder arranged between column cap and cap, the diameter of described cap is greater than the maximum diameter of described cylinder, described cylinder comprise be fixedly connected with column cap fixing part, be arranged on along the spring of cylinder radial expansion and active part that is radial along cylinder by spring and fixing part expansion fit on fixing part, minimum diameter when maximum diameter when cylinder has a spring elongation and spring tighten; The section of described fixing part is provided with positioning and guiding boss, the corresponding positioning hole be provided with for the embedding of positioning and guiding boss on described active part, described positioning and guiding boss center is provided with tapped hole, described positioning hole is shoulder hole and is through hole, Anti-off bolt is coated with in described positioning hole, the nut portion of this bolt coordinates with the macropore section of positioning hole, and the shaft of bolt passes the aperture section of positioning hole and coordinates with the tapped hole at described positioning and guiding boss center.
8. connection post according to claim 7, is characterized in that: described spring is two, and is separately positioned on the both sides of positioning and guiding boss along the axis connecting post.
9. the connection post according to claim 7 or 8, is characterized in that: described cap comprises the stationary part be fixedly connected with cylinder fixing part and the moving part be fixedly connected with cylinder active part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210394644.4A CN102943770B (en) | 2012-10-17 | 2012-10-17 | Connecting device for front and rear net covers of fan, and connecting column in device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210394644.4A CN102943770B (en) | 2012-10-17 | 2012-10-17 | Connecting device for front and rear net covers of fan, and connecting column in device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102943770A CN102943770A (en) | 2013-02-27 |
| CN102943770B true CN102943770B (en) | 2015-05-20 |
Family
ID=47726741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210394644.4A Expired - Fee Related CN102943770B (en) | 2012-10-17 | 2012-10-17 | Connecting device for front and rear net covers of fan, and connecting column in device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102943770B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029264B (en) * | 2017-06-14 | 2023-09-12 | 四川大学 | Steam sterilization box |
| CN111495802A (en) * | 2020-04-22 | 2020-08-07 | 河南中烟工业有限责任公司 | Manual push type dust removing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB166005A (en) * | 1920-05-06 | 1921-07-14 | George Gillibrand | Improvements in or relating to stenter clip pins |
| GB1152880A (en) * | 1965-12-30 | 1969-05-21 | Standard Pressed Steel Co | A Self-Retaining Bolt |
| SU804887A1 (en) * | 1979-02-12 | 1981-02-15 | Предприятие П/Я Р-6719 | Detachable fastening arrangement |
| SU1698490A2 (en) * | 1988-07-14 | 1991-12-15 | Предприятие П/Я Г-4967 | Method of manufacture of impeller for centrifugal pan |
| CN1946942A (en) * | 2004-04-21 | 2007-04-11 | 路德-链条制造里格尔及迪茨两合公司 | Lifting bolt comprising safety element |
| CN202251315U (en) * | 2011-08-15 | 2012-05-30 | 张玉程 | Novel fancy pin shaft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009264139A (en) * | 2008-04-22 | 2009-11-12 | Sanyo Electric Co Ltd | Electric fan |
-
2012
- 2012-10-17 CN CN201210394644.4A patent/CN102943770B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB166005A (en) * | 1920-05-06 | 1921-07-14 | George Gillibrand | Improvements in or relating to stenter clip pins |
| GB1152880A (en) * | 1965-12-30 | 1969-05-21 | Standard Pressed Steel Co | A Self-Retaining Bolt |
| SU804887A1 (en) * | 1979-02-12 | 1981-02-15 | Предприятие П/Я Р-6719 | Detachable fastening arrangement |
| SU1698490A2 (en) * | 1988-07-14 | 1991-12-15 | Предприятие П/Я Г-4967 | Method of manufacture of impeller for centrifugal pan |
| CN1946942A (en) * | 2004-04-21 | 2007-04-11 | 路德-链条制造里格尔及迪茨两合公司 | Lifting bolt comprising safety element |
| CN202251315U (en) * | 2011-08-15 | 2012-05-30 | 张玉程 | Novel fancy pin shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102943770A (en) | 2013-02-27 |
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