CN217634352U - Pressure gauge with joint double-sealing structure - Google Patents
Pressure gauge with joint double-sealing structure Download PDFInfo
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- CN217634352U CN217634352U CN202222382989.XU CN202222382989U CN217634352U CN 217634352 U CN217634352 U CN 217634352U CN 202222382989 U CN202222382989 U CN 202222382989U CN 217634352 U CN217634352 U CN 217634352U
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- connector
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- external screw
- wall
- pressure gauge
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 57
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of the manometer, a manometer with connect double containment structure is provided very much. The pressure gauge comprises a gauge body, a connector, a nut, a first sealing washer and a second sealing washer; wherein, be provided with first external screw thread and second external screw thread on the outer wall of connector, the screw thread direction of rotation of first external screw thread is opposite with the screw thread direction of rotation of second external screw thread, and the external diameter of second external screw thread is greater than first external screw thread, and first seal ring's appearance is the ring that "L" appears for radial cross-section, radially is provided with the incision on first seal ring's the lateral wall, and the incision cuts off first seal ring. The pressure gauge improves the connecting and sealing effect at the joint of the pressure gauge through a two-stage sealing structure; the joint between the threads and the outer wall of the connector is sealed through the first sealing washer, so that the connection sealing effect of the connector of the pressure gauge is further improved.
Description
Technical Field
The utility model belongs to the technical field of the manometer, a manometer with connect double containment structure is provided very much.
Background
The pressure gauge is an instrument for measuring and indicating the pressure higher than the environmental pressure, and is widely applied to the fields of industrial processes and scientific researches.
The sealing structure of the existing pressure gauge is single, because the depth of a target assembling screw hole possibly has difference, if the depth of the screw hole is shallow, after the pressure gauge is assembled, a part of threads on a connector is positioned outside the screw hole, so that the sealing ring is not easy to assemble, the sealing ring and the sealing ring press-mounting nut are additionally arranged, the threaded connection part still has the problems that the sealing effect of the sealing ring is obstructed by threads and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a manometer with connect double containment structure.
In order to achieve the above object, the utility model adopts the following technical scheme: a pressure gauge with a joint double-sealing structure comprises a gauge body, a connector, a nut and a second sealing washer, wherein the connector is arranged on the lower side of the gauge body, the nut is in threaded connection with the middle of the connector, and the second sealing washer is embedded into an annular end face at the pipe orifice of the connector;
be provided with first external screw thread and second external screw thread on the outer wall of connector, first external screw thread is located the middle part of connector outer wall, and the second external screw thread is located the lower extreme of connector outer wall, and the external diameter of second external screw thread is greater than first external screw thread, the internal thread and the first external screw thread phase-match of nut.
Further, the thread rotation direction of the first external thread is opposite to the thread rotation direction of the second external thread.
Further, be provided with the bayonet lock that is located the second external screw thread top on the outer wall of connector, seted up in the nut with bayonet lock appearance assorted draw-in groove, when the nut spiral shell advance to with the second external screw thread upper end state of laminating, the bayonet lock joint is in the draw-in groove.
Furthermore, a first sealing washer is sleeved in the middle of the connector, the first sealing washer is a circular ring with an inverted L-shaped radial cross section, a notch is radially formed in the side wall of the first sealing washer, and the first sealing washer is cut off by the notch.
Furthermore, the outer wall of the first sealing washer is provided with a conical surface, and the inner wall of the first sealing washer is provided with a compensation groove.
Furthermore, the outer wall of the root of the connector is symmetrically provided with flat keys in front and back.
Use the utility model discloses a beneficial effect is:
1. the pressure gauge improves the connecting and sealing effect at the joint of the pressure gauge through a two-stage sealing structure;
2. this manometer is sealed through the seam crossing of first seal ring pair screw thread and connector outer wall and is handled, further improves the sealed effect of connection of manometer connector department.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is an isometric view from above of the present invention;
fig. 3 is an isometric view from above of the present invention;
FIG. 4 isbase:Sub>A cross-sectional view of the nut of FIG. 2 at A-A;
FIG. 5 is a front view of the air inlet nozzle of the present invention with the locking pin inserted into the locking slot;
fig. 6 is a cross-sectional view of a first seal gasket of the present invention.
The reference numerals include: 1-watch body; 2-a connector; 3-a first external thread; 4-a second external thread; 401-bayonet lock; 5-a nut; 501-card slot; 6-a second sealing gasket; 7-a first sealing gasket; 701-incision; 702-a conical surface; 703-compensation groove.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1-6, a pressure gauge with a joint double-sealing structure comprises a gauge body 1, a connector 2, a nut 5 and a second sealing washer 6, wherein the connector 2 is arranged at the lower side of the gauge body 1, the nut 5 is screwed in the middle of the connector 2, and the second sealing washer 6 is embedded in an annular end face at a pipe orifice of the connector 2;
a first external thread 3 and a second external thread 4 are arranged on the outer wall of the connector 2, the first external thread 3 is positioned in the middle of the outer wall of the connector 2, the second external thread 4 is positioned at the lower end of the outer wall of the connector 2, the outer diameter of the second external thread 4 is larger than that of the first external thread 3, the internal thread of the nut 5 is matched with the first external thread 3, and the specification of the second external thread 4 is unified with a general standard;
the second external thread 4 corresponds common screw thread on the pressure gauge connector on the market, and the number of turns of the second external thread 4 is less than the number of turns of common screw thread, so that when the pressure gauge is assembled at the pressure gauge assembling port with each common depth, the second external thread 4 can be completely arranged inside the pressure gauge assembling port.
The thread rotation direction of the first external thread 3 is opposite to the thread rotation direction of the second external thread 4.
A bayonet 401 positioned at the top of the second external thread 4 is arranged on the outer wall of the connector 2, a clamping groove 501 matched with the shape of the bayonet 401 is formed in the nut 5, and when the nut 5 is screwed into a state of being attached to the upper end of the second external thread 4, the bayonet 401 is clamped in the clamping groove 501;
bayonet 401 and draw-in groove 501 structure can effectively restrict the scope that the 5 down screws into of nut, avoids using nut 5 as the spanner fixed point, assembles the manometer to the in-process of outside pipeline, and the internal thread condition of first external screw thread 3 and nut 5 is damaged too violently for screwing up the manometer and the application of force.
A first sealing washer 7 is sleeved in the middle of the connector 2;
as shown in fig. 6, the first sealing washer 7 is a circular ring with a radial cross section in an inverted "L" shape, a notch 701 is radially formed in the side wall of the first sealing washer 7, and the notch 701 cuts off the first sealing washer 7;
preferably, the first external thread 3 and the second external thread 4 are not connected, a smooth section with the outer diameter equal to the inner diameter of the first external thread 3 is arranged in the middle section of the outer wall of the connector 2 and positioned between the first external thread 3 and the second external thread 4, the inner diameter of the first sealing washer 7 is equal to the outer diameter of the smooth section, and the first sealing washer 7 is sleeved at the smooth section;
preferably, the notch 701 is obliquely arranged and forms an included angle of 30-45 degrees with the horizontal plane.
The outer wall of the first sealing washer 7 is provided with a conical surface 702, and the inner wall of the first sealing washer 7 is provided with a compensation groove 703;
the compensating groove 703 matches the profile of bayonet 401.
The outer wall at the root of the connector 2 is symmetrically provided with flat keys in the front and back direction, so that a worker can fix the meter body 1 through tools such as a wrench.
Preferably, the second sealing washer 6 and the first sealing washer 7 are made of rubber or other materials that are easily elastically deformed.
The worker firstly rotates the nut 5 to the lowest point, the bayonet pin 401 and the clamping groove 501 are matched to clamp the nut 5, the nut 5 is taken as a wrench fixing point, the meter body is rotated to assemble the second external thread 4 to the pressure meter assembling port of the external pipeline, when the screw enters the extreme position, the inner edge of the bottom of the pressure meter assembling port of the external pipeline and the lower end face of the connector 2 extrude a second sealing washer 6, and primary sealing is achieved;
after the second external thread 4 is connected with an external pipeline, the meter body 1 is fixed, the nut 5 is rotated reversely, the nut 5 rises along the first external thread 3, a worker unscrews the first sealing washer 7 from the notch 701 and sleeves the first sealing washer 7 below the nut 5, then the nut 5 is rotated forwardly, the nut 5 downwards extrudes the first sealing washer 7, the part with the smaller outer diameter at the lower side of the first sealing washer 7 is pressed into the gap between the outer wall of the connector 2 and the internal thread of the pressure meter assembly port, and meanwhile, the part with the larger outer diameter at the upper side of the first sealing washer 7 is extruded between the nut 5 and the upper end face of the pressure meter assembly port, so that secondary sealing is realized;
when needs are dismantled, rotate nut 5 to the peak, nut 5 supports 2 root's of connector lower terminal surface departments, and it can to use nut 5 to demolish the manometer as the spanner fixed point again.
Compare in current manometer, this manometer assembly back sealed effect has obvious improvement, and the assembly flow does not have the complication.
The above description is only a preferred embodiment of the present invention, and many changes can be made in the detailed description and the application scope according to the idea of the present invention for those skilled in the art, which all belong to the protection scope of the present invention as long as the changes do not depart from the concept of the present invention.
Claims (6)
1. The utility model provides a manometer with connect double containment structure which characterized in that: the meter comprises a meter body, a connector, a nut and a second sealing washer, wherein the connector is arranged on the lower side of the meter body, the nut is screwed in the middle of the connector, and the second sealing washer is embedded in an annular end face at the pipe orifice of the connector;
be provided with first external screw thread and second external screw thread on the outer wall of connector, first external screw thread is located the middle part of connector outer wall, and the second external screw thread is located the lower extreme of connector outer wall, and the external diameter of second external screw thread is greater than first external screw thread, the internal thread and the first external screw thread phase-match of nut.
2. A pressure gauge having a joint double sealing structure according to claim 1, wherein: the thread rotation direction of the first external thread is opposite to the thread rotation direction of the second external thread.
3. The pressure gauge having a joint double sealing structure according to claim 1, wherein: be provided with the bayonet lock that is located the second external screw thread top on the outer wall of connector, seted up in the nut with bayonet lock appearance assorted draw-in groove, when the nut spiral shell advance to with the state of the laminating of second external screw thread upper end, the bayonet lock joint is in the draw-in groove.
4. A pressure gauge having a joint double sealing structure according to claim 1, wherein: first seal ring has been cup jointed at the middle part of connector, and first seal ring's appearance is the ring that radial cross-section is "L" shape of falling, radially is provided with the incision on first seal ring's the lateral wall, and the incision cuts off first seal ring.
5. A pressure gauge having a joint double sealing structure according to claim 4, wherein: the outer wall of the first sealing washer is provided with a conical surface, and the inner wall of the first sealing washer is provided with a compensation groove.
6. A pressure gauge having a joint double sealing structure according to claim 1, wherein: and flat keys are symmetrically arranged on the outer wall of the root of the connector in a front-back manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222382989.XU CN217634352U (en) | 2022-09-08 | 2022-09-08 | Pressure gauge with joint double-sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222382989.XU CN217634352U (en) | 2022-09-08 | 2022-09-08 | Pressure gauge with joint double-sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217634352U true CN217634352U (en) | 2022-10-21 |
Family
ID=83637711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222382989.XU Expired - Fee Related CN217634352U (en) | 2022-09-08 | 2022-09-08 | Pressure gauge with joint double-sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217634352U (en) |
-
2022
- 2022-09-08 CN CN202222382989.XU patent/CN217634352U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221021 |