CN109555856B - Small hole sealing device - Google Patents
Small hole sealing device Download PDFInfo
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- CN109555856B CN109555856B CN201910034754.1A CN201910034754A CN109555856B CN 109555856 B CN109555856 B CN 109555856B CN 201910034754 A CN201910034754 A CN 201910034754A CN 109555856 B CN109555856 B CN 109555856B
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- pull rod
- diameter
- plate
- rod
- positioning hole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention provides a small hole sealing device which improves the stability of equipment, improves the production efficiency and reduces the manufacturing cost; meanwhile, the equipment is compatible with various products, and the tooling can be quickly changed. The automatic expansion device comprises a module installation seat, wherein the module installation seat is externally connected with a vertical driving structure, the module installation seat comprises a bottom plate and an upper plate assembly, an installation space is formed by connecting the bottom plate with the upper plate assembly through a supporting column, a pull rod cylinder is fixedly arranged on the bottom plate, the output end of the pull rod cylinder is connected with the bottom of the pull rod through a connecting piece, the upper part of the pull rod is exposed out of the upper plate assembly, the upper part of the pull rod is provided with a large-diameter spigot end and a small-diameter guide end from top to bottom, the small-diameter guide end is respectively sleeved with an expansion sleeve and an outer rod from top to bottom, the upper end face of the expansion sleeve is tightly attached to the lower end ring surface of the outer rod.
Description
Technical Field
The invention relates to the technical field of small-diameter inner hole blockage, in particular to a small-hole sealing device.
Background
The original small hole sealing device is 'manual blockage', and the internal structure is as follows: the inner hole is blocked by the metal inner rod rubber coating through hard friction, so that the blocking has short service life and frequent replacement, and a large amount of spare parts are consumed along with the continuous expansion of the generated productivity, so that huge waste is caused, and the quality of products is influenced to a certain extent.
Disclosure of Invention
In view of the above problems, the present invention provides a small hole sealing device, which improves the stability of equipment, improves the production efficiency, and reduces the manufacturing cost; meanwhile, the equipment is compatible with various products, and the tooling can be quickly changed.
A small hole sealing device, characterized in that: the automatic expansion device comprises a module installation seat, wherein the module installation seat is externally connected with a vertical driving structure, the module installation seat comprises a bottom plate and an upper plate assembly, an installation space is formed by connecting the bottom plate with the upper plate assembly through a supporting column, a pull rod cylinder is fixedly arranged on the bottom plate, the output end of the pull rod cylinder is connected with the bottom of the pull rod through a connecting piece, the upper part of the pull rod is exposed out of the upper plate assembly, the upper part of the pull rod is provided with a large-diameter spigot end and a small-diameter guide end from top to bottom, an expansion sleeve and an outer rod are respectively sleeved on the small-diameter guide end from top to bottom, the upper end surface of the expansion sleeve is tightly attached to the lower end surface of the large-diameter spigot end, the lower end surface of the expansion sleeve is tightly attached to the upper end surface of the outer rod, the bottom of the outer rod is pressed in the peripheral area of the corresponding avoidance port of the upper plate assembly, the outer diameter of the outer rod is the same with the outer diameter of the large-diameter spigot end, and the outer diameter of the expansion sleeve in an unpressurized state is not larger than the outer diameter of the outer rod.
It is further characterized by:
the upper plate assembly specifically comprises a first plate, a second plate and a bottom backing plate, wherein a protective sleeve positioning hole is formed in the center of the first plate, an outer rod positioning hole is formed in the center of the second plate, a pull rod positioning hole is formed in the center of the bottom backing plate, the second plate and the first plate are fixedly connected from bottom to top through bolts to form the upper plate assembly, the protective sleeve is sleeved on the periphery of the outer rod, the bottom of the protective sleeve is downwards convexly positioned in the protective sleeve positioning hole, a lower mounting seat of the protective sleeve is fixedly connected to the upper end face of the first plate through bolts, the outer rod is positioned and inserted in the outer rod positioning hole, the bottom of the outer rod is pressed in a corresponding area of the upper end face of the bottom backing plate, and a small-diameter guide end of the pull rod penetrates through the pull rod positioning hole and then extends into the mounting space;
the small-diameter guide end of the pull rod penetrates through the pull rod positioning hole, the guide assembly specifically comprises a guide sleeve, a guide spigot and a guide ring, the guide spigot is arranged at the bottom of the guide ring, the guide sleeve is sleeved at the part of the small-diameter guide end of the pull rod, which penetrates through the pull rod positioning hole, the guide spigot is arranged at the tail end of the bottom of the guide ring, a vertical moving area is arranged between the guide spigot and the guide ring, the guide sleeve penetrates through the guide ring and extends into the vertical moving area, a connecting piece is fixedly connected to the output end of the pull rod cylinder, the top of the connecting piece is fixedly connected with the guide sleeve and the assembly at the bottom of the small-diameter guide end, and the periphery of the top of the connecting piece is embedded in the periphery guide groove of the vertical moving area, so that the linear movement and the resetting of the pull rod are ensured to be accurate and reliable;
the outer diameter of the expansion sleeve in the uncompressed state is equal to the outer diameter of the outer rod;
the outer rod is formed by cutting and processing a finished stainless steel capillary tube, so that the structure of the outer rod is stable and reliable when the pull rod is pulled downwards;
the expansion sleeve is specifically made of silica gel, and deforms to block the corresponding hole after being subjected to pressure in the descending process of the pull rod.
After the technical scheme is adopted, the vertical driving structure drives the module mounting seat to ascend, so that the pull rod and the expansion sleeve penetrate through the small hole of the vacuum pump, then the pull rod cylinder drives the output end to descend and pulls the pull rod to descend, so that the expansion sleeve deforms and blocks the small hole, the expansion sleeve is pulled downwards by the pull rod to press the expansion sleeve, the expansion sleeve transversely deforms, the small hole of the vacuum pump is sealed, the sealing stability of a product is solved, and meanwhile, the manufacturing difficulty and the manufacturing cost are reduced; the hard abrasion does not occur, the stability of equipment is improved, the production efficiency is improved, and the manufacturing cost is reduced; meanwhile, pull rods, expansion sleeves and external infection with different sizes are manufactured according to different apertures, so that the equipment can be compatible with various products, and the tool can be quickly changed.
Drawings
FIG. 1 is a schematic perspective view of the invention;
FIG. 2 is a schematic diagram of the front view structure of the present invention;
FIG. 3 is a schematic side view cross-sectional structure of the present invention;
FIG. 4 is a schematic view of a partial enlarged structure at A in FIG. 3;
the structure names corresponding to the serial numbers in the figure are as follows:
the module installation seat 1, the bottom plate 2, the upper plate assembly 3, the first plate 31, the protective sleeve positioning hole 311, the second plate 32, the outer rod positioning hole 321, the bottom base plate 33, the pull rod positioning hole 331, the support column 4, the installation space 5, the pull rod cylinder 6, the connecting piece 7, the pull rod 8, the large-diameter spigot end 81, the small-diameter guide end 82, the expansion sleeve 9, the outer rod 10, the protective sleeve 11, the guide sleeve 12, the guide spigot 13, the guide ring 14 and the vertical moving area 15.
Detailed Description
A small hole sealing device, see fig. 1-4: the automatic expansion device comprises a module installation seat 1, wherein a vertical driving structure (not shown in the figure and belongs to the existing mature driving structure) is externally connected to the module installation seat 1, the module installation seat comprises a bottom plate 2 and an upper plate assembly 3, the bottom plate 2 and the upper plate assembly 3 are connected through a supporting column 4 and form an installation space 5, a pull rod cylinder 6 is fixedly arranged on the bottom plate 2, the output end of the pull rod cylinder 6 is connected with the bottom of a pull rod 8 through a connecting piece 7, the upper part of the pull rod 8 is exposed out of the upper plate assembly 3, the part of the upper part of the pull rod, which is exposed out of the upper plate assembly 3, is provided with a large-diameter spigot end 81 and a small-diameter guide end 82 from top to bottom, the top-down of the small-diameter guide end 82 is respectively sleeved with an expansion sleeve 9 and an outer rod 10, the upper end face of the expansion sleeve 9 is tightly attached to the lower end ring surface of the large-diameter spigot end 81, the lower end face of the expansion sleeve 9 is tightly attached to the upper end ring surface of the outer rod 10, the bottom of the outer rod 10 is pressed in the peripheral region of a corresponding avoidance opening of the upper plate assembly 3, the outer diameter of the outer rod 10 is identical to the outer diameter of the large-diameter spigot end 81, and the outer diameter of the expansion sleeve 9 in the uncompressed state is not larger than the outer diameter 10.
The upper plate assembly 3 specifically comprises a first plate 31, a second plate 32 and a bottom backing plate 33, wherein a protective sleeve positioning hole 311 is formed in the center of the first plate 31, an outer rod positioning hole 321 is formed in the center of the second plate 32, a pull rod positioning hole 331 is formed in the center of the bottom backing plate 33, the second plate 32 and the first plate 31 are fixedly connected from bottom to top through bolts to form the upper plate assembly 3, a protective sleeve 11 is sleeved on the periphery of an outer rod 10, the bottom of the protective sleeve 11 is downwards convexly positioned 111 in the protective sleeve positioning hole 311, a lower mounting seat 112 of the protective sleeve 11 is fixedly connected to the upper end surface of the first plate 31 through bolts, the outer rod 10 is positioned and inserted in the outer rod positioning hole 321, the bottom of the outer rod 10 is pressed in a corresponding area of the upper end surface of the bottom backing plate 33, and a small-diameter guide end 82 of the pull rod 8 extends into the mounting space 5 after penetrating through the pull rod positioning hole 331;
the small-diameter guide end 82 of the pull rod 8 penetrates through the pull rod positioning hole 331 to form a guide assembly, the guide assembly specifically comprises a guide sleeve 12, a guide spigot 13 and a guide ring 14, the guide spigot 13 is arranged at the bottom of the guide ring 14, the guide sleeve 12 is sleeved at the part of the small-diameter guide end 82 of the pull rod 8 penetrating through the pull rod positioning hole 331, the guide spigot 13 is arranged at the tail end of the bottom of the guide ring 14, a vertical movable area 15 is arranged between the guide spigot 13 and the guide ring 14, the guide sleeve 12 penetrates through the guide ring 14 and extends into the vertical movable area 15, a connecting piece 7 is fixedly connected to the output end of the pull rod cylinder 6, the guide sleeve 12 and a combined piece at the bottom of the small-diameter guide end 82 are fixedly connected to the top of the connecting piece 7, and Zhou Qianzhuang outside the top of the connecting piece 7 is arranged in a peripheral guide groove of the vertical movable area 15, so that the linear movement and resetting of the pull rod 8 are ensured to be accurate and reliable;
the outer diameter of the expansion sleeve 9 in the uncompressed state is equal to the outer diameter of the outer rod 10;
the outer rod 10 is specifically formed by cutting a finished stainless steel capillary tube, and can ensure that the structure of the outer rod is stable and reliable when the pull rod is pulled downwards;
the expansion sleeve 9 is made of silica gel material, and deforms to block the corresponding hole after being pressed in the descending process of the pull rod.
In the specific embodiment, the pull rod 8 is obtained by processing a finished product grinding tool thimble and a 1.2mm thimble; the outer rod 10 is cut by a finished stainless steel capillary tube, the outer diameter is 2.5mm, and the wall thickness is 0.6mm; the expansion sleeve 9 is cut by a silica gel hose with the outer diameter of 2.5mm and the inner diameter of 1.0 mm.
The operation process is as follows: the whole module rises, and the expansion sleeve and the pull rod are inserted into the small hole; the pull rod cylinder pulls the pull rod, and the pull rod extrudes the expansion sleeve to block the small hole; after the test is completed, the pull rod air cylinders are reset in sequence, and the whole module descends and resets.
The working principle is as follows: the vertical driving structure drives the module installation seat to ascend, the pull rod and the expansion sleeve penetrate through the small hole of the vacuum pump, then the pull rod cylinder drives the output end to descend, the pull rod is pulled to descend, the expansion sleeve deforms and blocks the small hole, the expansion sleeve is pulled downwards through the pull rod to compress the expansion sleeve, and the expansion sleeve transversely deforms, so that the small hole of the vacuum pump is sealed.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the present invention shall fall within the scope of the present patent.
Claims (4)
1. A small hole sealing device, characterized in that: the automatic expansion device comprises a module installation seat, wherein the module installation seat is externally connected with a vertical driving structure, the module installation seat comprises a bottom plate and an upper plate assembly, the bottom plate and the upper plate assembly are connected through a supporting column to form an installation space, a pull rod cylinder is fixedly arranged on the bottom plate, the output end of the pull rod cylinder is connected with the bottom of a pull rod through a connecting piece, the upper part of the pull rod is exposed out of the upper plate assembly, the part of the upper part of the pull rod exposed out of the upper plate assembly is provided with a large-diameter spigot end and a small-diameter guide end from top to bottom, an expansion sleeve and an outer rod are respectively sleeved at the small-diameter guide end from top to bottom, the upper end face of the expansion sleeve is tightly attached to the lower end ring face of the large-diameter spigot end, the lower end face of the expansion sleeve is tightly attached to the upper end ring face of the outer rod, the bottom of the outer rod is pressed in the peripheral area of the corresponding avoidance opening of the upper plate assembly, the outer diameter of the outer rod is the outer diameter of the large-diameter spigot end is the same, and the outer diameter of the expansion sleeve in an unpressurized state is not larger than the outer diameter of the outer rod;
the upper plate assembly specifically comprises a first plate, a second plate and a bottom backing plate, wherein a protective sleeve positioning hole is formed in the center of the first plate, an outer rod positioning hole is formed in the center of the second plate, a pull rod positioning hole is formed in the center of the bottom backing plate, the second plate and the first plate are fixedly connected from bottom to top through bolts to form the upper plate assembly, the protective sleeve is sleeved on the periphery of the outer rod, the bottom of the protective sleeve is downwards convexly positioned in the protective sleeve positioning hole, a lower mounting seat of the protective sleeve is fixedly connected to the upper end face of the first plate through bolts, the outer rod is positioned and inserted in the outer rod positioning hole, the bottom of the outer rod is pressed in a corresponding area of the upper end face of the bottom backing plate, and a small-diameter guide end of the pull rod penetrates through the pull rod positioning hole and then extends into the mounting space;
the utility model provides a pull rod, including pull rod positioning hole, pull rod's path guiding end runs through the part of pull rod positioning hole is provided with the direction subassembly, the direction subassembly specifically includes uide bushing, direction tang, guide ring, the bottom of guide ring is provided with the direction tang, the path guiding end of pull rod runs through the part cover of pull rod positioning hole is equipped with the uide bushing, the bottom end of guide ring is provided with the direction tang, be provided with the perpendicular to activity region between direction tang and the guide ring, the uide bushing runs through the guide ring and extends to in the perpendicular to activity region, the output rigid coupling of pull rod cylinder has the connecting piece, the top rigid coupling of connecting piece uide bushing, path guiding end bottom the sub-unit spare, the top periphery of connecting piece inlay in perpendicular to activity region's periphery guide way arranges.
2. A small hole sealing device as defined in claim 1, wherein: the outer diameter of the expansion sleeve in the uncompressed state is equal to the outer diameter of the outer rod.
3. A small hole sealing device as defined in claim 1, wherein: the outer rod is specifically formed by cutting and processing a finished stainless steel capillary tube.
4. A small hole sealing device as defined in claim 1, wherein: the expansion sleeve is specifically made of silica gel, and deforms to block the corresponding hole after being subjected to pressure in the descending process of the pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910034754.1A CN109555856B (en) | 2019-01-15 | 2019-01-15 | Small hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910034754.1A CN109555856B (en) | 2019-01-15 | 2019-01-15 | Small hole sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109555856A CN109555856A (en) | 2019-04-02 |
| CN109555856B true CN109555856B (en) | 2023-08-18 |
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ID=65872934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910034754.1A Active CN109555856B (en) | 2019-01-15 | 2019-01-15 | Small hole sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109555856B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347885A (en) * | 2007-07-16 | 2009-01-21 | 昆山华恒工程技术中心有限公司 | Central pneumatic power positioner |
| CN104741863A (en) * | 2013-12-31 | 2015-07-01 | 深圳市鹏煜威科技有限公司 | Expanding and tensioning device |
| CN104889438A (en) * | 2015-05-30 | 2015-09-09 | 广西玉柴机器股份有限公司 | Self-locking type expansion sleeve structure |
| CN105364404A (en) * | 2015-10-27 | 2016-03-02 | 深圳市鹏煜威科技有限公司 | Cylinder tensioning and rotating device |
| CN105703531A (en) * | 2016-03-16 | 2016-06-22 | 广州可鼎自动化设备有限公司 | Biconical expansion locking mechanism |
| CN205352618U (en) * | 2015-12-14 | 2016-06-29 | 湖南罗佑发动机部件有限公司 | Sealed end cap frock of engine oil chi pipe mounting hole |
| CN105735900A (en) * | 2016-04-20 | 2016-07-06 | 广西建工集团第二安装建设有限公司 | Back-enlarging head for anchor hole chambering |
| CN209444803U (en) * | 2019-01-15 | 2019-09-27 | 苏州天准科技股份有限公司 | A kind of aperture sealing device |
-
2019
- 2019-01-15 CN CN201910034754.1A patent/CN109555856B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347885A (en) * | 2007-07-16 | 2009-01-21 | 昆山华恒工程技术中心有限公司 | Central pneumatic power positioner |
| CN104741863A (en) * | 2013-12-31 | 2015-07-01 | 深圳市鹏煜威科技有限公司 | Expanding and tensioning device |
| CN104889438A (en) * | 2015-05-30 | 2015-09-09 | 广西玉柴机器股份有限公司 | Self-locking type expansion sleeve structure |
| CN105364404A (en) * | 2015-10-27 | 2016-03-02 | 深圳市鹏煜威科技有限公司 | Cylinder tensioning and rotating device |
| CN205352618U (en) * | 2015-12-14 | 2016-06-29 | 湖南罗佑发动机部件有限公司 | Sealed end cap frock of engine oil chi pipe mounting hole |
| CN105703531A (en) * | 2016-03-16 | 2016-06-22 | 广州可鼎自动化设备有限公司 | Biconical expansion locking mechanism |
| CN105735900A (en) * | 2016-04-20 | 2016-07-06 | 广西建工集团第二安装建设有限公司 | Back-enlarging head for anchor hole chambering |
| CN209444803U (en) * | 2019-01-15 | 2019-09-27 | 苏州天准科技股份有限公司 | A kind of aperture sealing device |
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| CN109555856A (en) | 2019-04-02 |
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