CN212717577U - Bolt and nut assembly with sealing ring - Google Patents
Bolt and nut assembly with sealing ring Download PDFInfo
- Publication number
- CN212717577U CN212717577U CN202021466462.XU CN202021466462U CN212717577U CN 212717577 U CN212717577 U CN 212717577U CN 202021466462 U CN202021466462 U CN 202021466462U CN 212717577 U CN212717577 U CN 212717577U
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- sealing ring
- sealing washer
- screw rod
- 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.)
- Active
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model belongs to the technical field of fastening coupling assembling, refer in particular to a bolt and nut subassembly with sealing washer, including bolt and nut, the bolt has screw rod and nut, sets up the installation circular slot rather than the same axis of hole on the wherein one end terminal surface of nut, and the outer border that is located the nut of installation circular slot periphery forms an annular arch along its radial outside extension, the cover is equipped with the groove depth degree that is located the sealing washer of installation circular slot, and the line diameter of sealing washer is greater than the installation circular slot on the screw rod. The utility model has the advantages that the mounting circular groove is used for fixedly placing the sealing ring and can play a certain radial limiting role in elastic deformation of the sealing ring; simultaneously, the annular bulge can enlarge the terminal surface area scope of nut towards the component, effectively avoids the sealing washer to take place the condition emergence that extends to outside the nut when receiving the extrusion and taking place elastic deformation to ensure that the sealing washer can the clearance between shutoff bolt and the component, make the utility model discloses can possess higher leakproofness.
Description
The technical field is as follows:
the utility model belongs to the technical field of fastening coupling assembling, refer in particular to a bolt and nut subassembly with sealing washer.
Background art:
when the bolt and the nut are applied to a component with high requirements on air tightness or water tightness, in order to meet the requirements of the component on air tightness or water tightness and avoid gas or liquid from leaking outwards from a gap between the bolt and the component, a sealing ring is often sleeved on the bolt between the nut and the component, and the nut is screwed towards the component to press the sealing ring, so that the sealing ring is in close contact with the component to block the gap between the bolt and the component.
However, nut extrusion sealing washer can make the sealing washer take place elastic deformation, and elastic deformation can follow the radial outside extension of nut, and in practical application, the sealing washer is extruded and elastic deformation extends outside the nut easily by the nut, and then leads to the sealing washer can't carry out the shutoff with the clearance between bolt and the component, still can cause serious damage to the sealing washer simultaneously.
The invention content is as follows:
the utility model aims at providing a bolt and nut subassembly that has the sealing washer, and the sealing washer can not extend to outside the nut when receiving the extrusion and take place elastic deformation, and the leakproofness is high.
The utility model discloses a realize like this:
the utility model provides a bolt and nut subassembly with sealing washer, including bolt and nut, the bolt has the screw rod and sets up the nut on the screw rod top, has seted up the external screw thread on the outer wall of screw rod, set up the internal thread with external screw thread looks adaptation on the hole of nut, set up the installation circular slot rather than the same axis of hole on the wherein one end terminal surface of nut, the outer border of the nut that is located installation circular slot periphery is followed its radial outside extension and is formed an annular protrusion, the cover is equipped with the sealing washer that is located the installation circular slot on the screw rod, and the line footpath of sealing washer is greater than the groove depth degree of depth of installation circular slot.
In the bolt-nut assembly with the sealing ring, the line diameter of the sealing ring is smaller than the width between the edge of the mounting circular groove and the outer edge of the annular bulge.
In the bolt and nut assembly with the sealing ring, the depth of the mounting circular groove is less than or equal to the height of the annular protrusion.
In the bolt and nut assembly with the sealing ring, an elastic gap is reserved between the inner side wall of the mounting circular groove and the outer side wall of the sealing ring.
In the bolt and nut assembly with the sealing ring, the inner diameter of the sealing ring is slightly smaller than the diameter of the screw rod, and the sealing ring is sleeved between the upper adjacent thread and the lower adjacent thread of the external thread.
In the bolt and nut assembly with the sealing ring, the ratio of the linear diameter of the sealing ring to the depth of the mounting circular groove is 4:3-8: 3.
Compared with the prior art, the utility model outstanding advantage is:
the utility model is provided with the mounting circular groove on one end face of the nut, which is used for fixing and placing the sealing ring and can play a radial limiting role to a certain extent on the elastic deformation of the sealing ring; simultaneously, the corresponding tip of nut radially outwards extends and forms annular bulge to enlarge the terminal surface area scope of nut towards the component, effectively avoid the sealing washer to take place to extend to the condition emergence outside the nut when receiving the extrusion and taking place elastic deformation, in order to ensure that the sealing washer can shutoff bolt and the clearance between the component, make the utility model discloses can possess higher leakproofness.
Description of the drawings:
fig. 1 is an overall perspective view of the present invention;
fig. 2 is a perspective view of the nut of the present invention;
fig. 3 is a schematic overall sectional view of the present invention.
In the figure: 1. a bolt; 2. a nut; 3. a screw; 4. a nut; 5. installing a circular groove; 6. an annular projection; 7. a seal ring; d1, the wire diameter of the sealing ring; h1, depth of the mounting circular groove; d2, the width between the edge of the mounting circular groove and the outer edge of the annular bulge; h2, height of annular protrusion.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:
the utility model provides a bolt and nut subassembly with sealing washer, including bolt 1 and nut 2, bolt 1 has screw rod 3 and sets up nut 4 on 3 tops of screw rod, has seted up the external screw thread on screw rod 3's the outer wall, set up the internal thread with external screw thread looks adaptation on nut 2's the hole, set up the installation circular slot 5 rather than the hole same axis on nut 2's one of them terminal surface, the outer border that is located nut 2 of installation circular slot 5 periphery forms an annular arch 6 along its radial outside extension, the cover is equipped with on screw rod 3 and is located sealing washer 7 of installation circular slot 5, and the line footpath D1 of sealing washer is greater than the groove depth degree of depth H1 of installation circular slot. In practical application, the end surface of the nut 2 provided with the mounting circular groove 5 should face the member to which the bolt 1 is connected.
The utility model is provided with the mounting circular groove 5 on one end face of the nut 2, which is used for fixing and placing the sealing ring 7 and can play a radial limiting role to a certain extent on the elastic deformation of the sealing ring 7; simultaneously, the corresponding tip of nut 2 radially outwards extends and forms annular bulge 6 to enlarge nut 2 towards the terminal surface area scope of component, effectively avoid sealing washer 7 to extend to the condition emergence outside nut 2 when receiving the extrusion and taking place elastic deformation, in order to ensure that sealing washer 7 can the clearance between shutoff bolt 1 and the component, make the utility model discloses can possess higher leakproofness.
In view of the elastic limit of the sealing ring 7, the diameter D1 of the sealing ring is smaller than the width D2 between the edge of the mounting circular groove and the outer edge of the annular projection, in order to ensure that the sealing ring 7 does not extend beyond the nut 2 when elastically deformed by compression.
In order to avoid the arrangement of the mounting circular groove 5 which reduces the bearing strength of the nut 2, the groove depth H1 of the mounting circular groove is less than or equal to the height H2 of the annular protrusion.
Furthermore, in order to facilitate the placement of the seal ring 7 in the installation circular groove 5, an elastic gap exists between the inner side wall of the installation circular groove 5 and the outer side wall of the seal ring 7, that is, the diameter of the installation circular groove 5 is larger than the outer diameter of the seal ring 7. In addition, in practical application, the elastic gap can enable the sealing ring 7 to be elastically deformed in the installation circular groove 5 so as to completely fill the installation circular groove 5, so that the connection stability between the sealing ring 7 and the nut 2 is effectively improved.
Meanwhile, in order to enable the sealing ring 7 to be stably sleeved on the screw rod 3, the inner diameter of the sealing ring 7 is slightly smaller than the diameter of the screw rod 3, and the sealing ring 7 is sleeved between the upper adjacent thread and the lower adjacent thread of the external thread.
In addition, the ratio of the line diameter D1 of the sealing ring to the groove depth H1 of the mounting circular groove is 4:3-8:3, and in the embodiment, the ratio of the line diameter D1 of the sealing ring to the groove depth H1 of the mounting circular groove is 3: 2.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. The utility model provides a bolt and nut subassembly with sealing washer, including bolt (1) and nut (2), bolt (1) has screw rod (3) and sets up nut (4) on screw rod (3) top, has seted up the external screw thread on the outer wall of screw rod (3), sets up the internal thread with external screw thread looks adaptation on the hole of nut (2), its characterized in that: set up installation circular slot (5) rather than the same axis of hole on the wherein one end terminal surface of nut (2), the outer border that is located nut (2) of installation circular slot (5) periphery forms an annular arch (6) along its radial outside extension, the cover is equipped with on screw rod (3) and is located sealing washer (7) in installation circular slot (5) and the line footpath (D1) of sealing washer is greater than the groove depth degree of depth (H1) of installation circular slot.
2. The bolt-nut assembly with the seal ring according to claim 1, wherein: the wire diameter (D1) of the sealing ring is smaller than the width (D2) between the edge of the mounting circular groove and the outer edge of the annular bulge.
3. The bolt-nut assembly with the seal ring according to claim 1, wherein: the depth (H1) of the mounting circular groove is less than or equal to the height (H2) of the annular bulge.
4. The bolt-nut assembly with the seal ring according to claim 1, wherein: and an elastic gap is reserved between the inner side wall of the mounting circular groove (5) and the outer side wall of the sealing ring (7).
5. The bolt-nut assembly with the seal ring according to claim 1, wherein: the inner diameter of the sealing ring (7) is slightly smaller than the diameter of the screw rod (3), and the sealing ring (7) is sleeved between the upper adjacent thread and the lower adjacent thread of the external thread.
6. The bolt-nut assembly with the seal ring according to claim 1, wherein: the ratio of the line diameter (D1) of the sealing ring to the groove depth (H1) of the mounting circular groove is 4:3-8: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021466462.XU CN212717577U (en) | 2020-07-21 | 2020-07-21 | Bolt and nut assembly with sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021466462.XU CN212717577U (en) | 2020-07-21 | 2020-07-21 | Bolt and nut assembly with sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212717577U true CN212717577U (en) | 2021-03-16 |
Family
ID=74908283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021466462.XU Active CN212717577U (en) | 2020-07-21 | 2020-07-21 | Bolt and nut assembly with sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212717577U (en) |
-
2020
- 2020-07-21 CN CN202021466462.XU patent/CN212717577U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201255280Y (en) | Sealing gasket | |
| CN212717577U (en) | Bolt and nut assembly with sealing ring | |
| CN201326632Y (en) | Screw nail sealing structure | |
| CN201547104U (en) | Sealing bolt | |
| CN215030142U (en) | Non-thread type massage bathtub spray head | |
| CN111520013B (en) | Dynamic sealing structure for heavy hinge and dynamic sealing ring thereof | |
| CN2198459Y (en) | Seal structure between pump and screw plunger end | |
| CN220368542U (en) | High leakproofness motor back lid | |
| CN215673571U (en) | Anti-deformation rubber sealing element | |
| CN216162967U (en) | Stroke limiter | |
| CN216789289U (en) | Built-in fixed shaft structure of fixed ball valve | |
| CN221857264U (en) | Hexagonal nut structure | |
| CN221178183U (en) | Sealing gasket for electric automobile compressor controller and compressor controller | |
| CN212360517U (en) | Waterproof bearing seal ring | |
| CN213206263U (en) | Fastening screw with good sealing effect | |
| CN213039812U (en) | Installation structure of feeder window of communication base station | |
| CN219875281U (en) | Motor mounting structure of cleaning machine | |
| CN220395848U (en) | Valve chamber cover assembly with noise reduction function | |
| CN221897158U (en) | Ball valve | |
| CN212958888U (en) | Engine cylinder head cover assembly | |
| CN215284375U (en) | Sealing structure of oil filler door and vehicle | |
| CN220726808U (en) | Double-effect sealing structure for assembling screw in blind hole | |
| CN219097467U (en) | High leakproofness isoprene plug | |
| CN217270471U (en) | Oil return pipe sealing structure connected with supercharger, engine and vehicle | |
| CN113309853A (en) | Anti-deformation rubber sealing element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |