CN115111252A - Small-diameter inner hole back-flushing hole device - Google Patents
Small-diameter inner hole back-flushing hole device Download PDFInfo
- Publication number
- CN115111252A CN115111252A CN202210712964.3A CN202210712964A CN115111252A CN 115111252 A CN115111252 A CN 115111252A CN 202210712964 A CN202210712964 A CN 202210712964A CN 115111252 A CN115111252 A CN 115111252A
- Authority
- CN
- China
- Prior art keywords
- hole
- flushing
- main body
- small diameter
- flushing hole
- 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.)
- Pending
Links
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 15
- 238000001125 extrusion Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Classifications
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/005—Edge deburring or smoothing
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a small-diameter inner hole back-flushing hole device which comprises a main body, wherein an air guide hole is formed in the inner end of the main body, the inner side surface of the upper end of the main body is provided with a back-flushing hole device, the lower end of the back-flushing hole device is provided with a threaded convex opening, the outer surface of the threaded convex opening is connected to the inner side surface of the upper end of the main body through threads, a hexagonal convex seat is arranged on the outer surface of the lower end of the back-flushing hole device, an annular groove is formed in the upper surface of the main body, a pressure spring is placed on the inner side surface of the annular groove, the hexagonal convex seat is used for supporting, the bottom of the hexagonal convex opening is provided with a pressure spring support, after locking, pressure can be generated upwards through the pressure spring, the back-flushing hole device can be extruded reversely, locking is facilitated, wire sliding is difficult, and sealing performance is improved through the facing and sealing.
Description
Technical Field
The invention relates to the field of back-flushing devices, in particular to a small-diameter inner hole back-flushing device.
Background
The problem of how to handle the through oil hole inner hole acute angle and the burr of brake master cylinder, clutch master cylinder is solved. Because the diameters of the inner holes of the oil passing holes of the master cylinder and the clutch master cylinder are smaller, the diameters are about 3mm generally, the lengths of the main holes of the master cylinder and the clutch master cylinder are longer, the chamfers of the inner holes cannot be processed by a machining means, if the inner holes do not have chamfers, rubber parts (O-shaped sealing rings) can be scratched during assembly, the main pistons cannot be sealed, oil leakage and insufficient pressure can occur, and the small-diameter inner hole back-flushing hole puncher needs to be used for impact processing;
in the small-diameter inner hole back-flushing hole device in the prior art, the back-flushing hole device is connected through threads when being installed, the installation stability is poor, a sliding wire is easy to loosen, and the air flow guiding performance is poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a small-diameter inner hole back-flushing hole device which is in threaded connection, supported by a hexagonal convex seat and supported by a pressure spring at the bottom, after locking, the pressure spring can generate pressure upwards to reversely extrude the back-flushing hole device, so that the locking is convenient, the wire sliding is difficult, and the sealing performance is improved by abutting and sealing of a bulging surface during airflow diversion.
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a minor diameter hole recoil hole ware, includes the main part, the inner of main part is provided with the air guide hole, the upper end inside surface mounting of main part has the recoil hole ware, the lower extreme of recoil hole ware is provided with the screw thread bead, the surface of screw thread bead passes through the upper end inside surface of threaded connection in the main part, the lower extreme surface of recoil hole ware is provided with the hexagonal convex seat, the upper surface of main part is provided with the annular groove, the pressure spring has been placed to the inside surface of annular groove, and through adopting threaded connection, the hexagonal convex seat supports, and the bottom sets up the pressure spring and supports, and after the locking, the accessible pressure spring upwards produces pressure, but backward extrusion recoil hole ware, and the locking of being convenient for is difficult for smooth silk, and during the air current water conservancy diversion, through the face-to-face driving fit that rises, improves sealing performance.
Furthermore, the gasket is sleeved on the outer surface of the threaded convex opening, and the upper end of the pressure spring is extruded on the lower surface of the gasket, so that the upward extrusion is facilitated.
Furthermore, the inner side surface of the back-flushing hole device is provided with a reducing cavity, so that compressed air flow can be conveniently led in, and the pressure can be conveniently increased.
Furthermore, a bulging surface is arranged on the upper end surface of the air guide hole of the main body.
Furthermore, the bulging surface is attached to the inner side surface of the lower end of the back-flushing hole device, so that the sealing performance is improved.
Furthermore, the outer surface of the bulging surface is covered with a rubber layer, so that the sealing performance is improved.
Furthermore, the gasket is an annular gasket made of elastic steel materials and is tight in locking.
Furthermore, the lower extreme surface of screw thread tang is provided with annular chamfer, and the screw thread installation of being convenient for is convenient for guide when turning round, can not block and die.
Compared with the prior art, the invention has the advantages that:
(1) through adopting threaded connection, the hexagonal convex seat supports, and the bottom sets up the pressure spring and supports, and the locking back, accessible pressure spring upwards produces pressure, but backward extrusion recoil hole ware, the locking of being convenient for, the difficult smooth silk, during the air current water conservancy diversion, through the face-to-face driving that rises, improves sealing performance.
(2) The gasket is sleeved on the outer surface of the threaded convex opening, and the upper end of the pressure spring is extruded on the lower surface of the gasket, so that the upward extrusion is facilitated.
(3) The inner side surface of the back-flushing hole device is provided with a reducing cavity, so that compressed air flow can be conveniently led in, and the pressure can be conveniently increased.
(4) A bulge surface is arranged on the upper end surface of the air guide hole of the main body, and the bulge surface is attached to the inner side surface of the lower end of the back-flushing hole device, so that the sealing performance is improved.
(5) The outer surface of the swelling surface is covered with a rubber layer, so that the sealing performance is improved.
(6) The gasket is an annular gasket made of elastic steel materials and is tight in locking.
(7) The lower extreme surface of screw thread tang is provided with annular chamfer, and the screw thread installation of being convenient for is convenient for guide when turning round, can not block.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention;
fig. 3 is an enlarged view of the invention at a.
The numbering in the figures illustrates:
the device comprises a main body 1, air guide holes 2, a back-flushing hole device 3, a threaded convex opening 4, a hexagonal convex seat 5, an annular groove 6, a pressure spring 7, a gasket 8, a diameter-variable cavity 30 and a bulging surface 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a small-diameter inner hole back-flushing device comprises a main body 1, an air guide hole 2 is formed in the inner end of the main body 1, a back-flushing device 3 is installed on the inner side surface of the upper end of the main body 1, a threaded convex opening 4 is formed in the lower end of the back-flushing device 3, the outer surface of the threaded convex opening 4 is connected to the inner side surface of the upper end of the main body 1 through threads, a hexagonal convex seat 5 is arranged on the outer surface of the lower end of the back-flushing device 3, an annular groove 6 is formed in the upper surface of the main body 1, and a pressure spring 7 is placed on the inner side surface of the annular groove 6.
Referring to fig. 1-3, a gasket 8 is sleeved on the outer surface of a threaded convex opening 4, the upper end of a pressure spring 7 is extruded on the lower surface of the gasket 8 to facilitate upward extrusion, a reducing cavity 30 is arranged on the inner side surface of a back-flushing hole device 3 to facilitate pressure increase, a bulging surface 20 is arranged on the upper end surface of an air guide hole 2 of a main body 1, the bulging surface 20 is attached to the inner side surface of the lower end of the back-flushing hole device 3 to improve sealing performance, a rubber layer is covered on the outer surface of the bulging surface 20 to improve sealing performance, the gasket 8 is an annular gasket made of elastic steel, locking is tight, and an annular chamfer is arranged on the outer surface of the lower end of the threaded convex opening 4 to facilitate thread installation, guide when twisting is facilitated, and clamping cannot occur.
When the anti-loosening device is used, the anti-loosening device is connected to the surface of a main body 1 through a threaded convex opening 4, is clamped into a hexagonal convex seat 5 through a wrench and is twisted so as to be convenient for twisting and locking, an annular groove 6 is formed in the upper surface of the main body 1, a pressure spring 7 is placed on the inner side surface of the annular groove 6, a gasket 8 is sleeved on the outer surface of the threaded convex opening 4, the upper end of the pressure spring 7 is extruded on the lower surface of the gasket 8 so as to be convenient for upward extrusion, a back-flushing hole device 3 can be reversely extruded upwards through the pressure spring 7, and the thread slipping is not easy to loosen;
the inner side surface of the back-flushing hole device 3 is provided with the reducing cavity 30, so that pressure can be increased conveniently, the upper end surface of the air guide hole 2 of the main body 1 is provided with the bulging surface 20, the bulging surface 20 is attached to the inner side surface of the lower end of the back-flushing hole device 3, the tightness during air guide is improved, the sealing performance is improved, and the rubber layer is covered on the outer surface of the bulging surface 20, so that the sealing performance is improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by the equivalent or modified embodiments and the modified concepts of the present invention.
Claims (8)
1. A small-diameter inner hole back-flushing device comprises a main body (1) and is characterized in that: the inner of main part (1) is provided with air guide hole (2), the upper end inboard surface mounting of main part (1) has recoil hole ware (3), the lower extreme of recoil hole ware (3) is provided with screw thread tang (4), the surface of screw thread tang (4) passes through the upper end inboard surface of threaded connection in main part (1), the lower extreme surface of recoil hole ware (3) is provided with hexagonal convex seat (5), the upper surface of main part (1) is provided with annular groove (6), pressure spring (7) have been placed on the inboard surface of annular groove (6).
2. A small diameter internal bore back-flushing hole tool according to claim 1, characterised in that: the outer surface of the threaded convex opening (4) is sleeved with a gasket (8), and the upper end of the pressure spring (7) is extruded on the lower surface of the gasket (8).
3. A small diameter internal hole back-flushing perforator as claimed in claim 1 wherein: the inner side surface of the recoil hole device (3) is provided with a reducing cavity (30).
4. A small diameter internal bore back-flushing hole tool according to claim 1, characterised in that: the upper end surface of the air guide hole (2) of the main body (1) is provided with a bulging surface (20).
5. A small diameter internal hole back-flushing hole device according to claim 4, characterized in that: the bulging surface (20) is attached to the inner side surface of the lower end of the recoil hole device (3).
6. A small diameter internal hole back-flushing hole device according to claim 4, characterized in that: the outer surface of the bulging surface (20) is covered with a rubber layer.
7. A small diameter internal bore back-flushing hole unit according to claim 2, characterised in that: the gasket (8) is an annular gasket made of elastic steel.
8. A small diameter internal bore back-flushing hole tool according to claim 1, characterised in that: and an annular chamfer is arranged on the outer surface of the lower end of the threaded convex opening (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210712964.3A CN115111252A (en) | 2022-06-22 | 2022-06-22 | Small-diameter inner hole back-flushing hole device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210712964.3A CN115111252A (en) | 2022-06-22 | 2022-06-22 | Small-diameter inner hole back-flushing hole device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115111252A true CN115111252A (en) | 2022-09-27 |
Family
ID=83327604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210712964.3A Pending CN115111252A (en) | 2022-06-22 | 2022-06-22 | Small-diameter inner hole back-flushing hole device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115111252A (en) |
-
2022
- 2022-06-22 CN CN202210712964.3A patent/CN115111252A/en active Pending
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