CN215984995U - Anti-freezing device for expansion joint of pressure gauge - Google Patents
Anti-freezing device for expansion joint of pressure gauge Download PDFInfo
- Publication number
- CN215984995U CN215984995U CN202122240790.9U CN202122240790U CN215984995U CN 215984995 U CN215984995 U CN 215984995U CN 202122240790 U CN202122240790 U CN 202122240790U CN 215984995 U CN215984995 U CN 215984995U
- Authority
- CN
- China
- Prior art keywords
- connecting body
- pressure gauge
- fixedly connected
- plunger
- groove
- 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.)
- Expired - Fee Related
Links
- 238000007710 freezing Methods 0.000 title abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 230000002528 anti-freeze Effects 0.000 claims abstract description 17
- 238000010030 laminating Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 238000003825 pressing Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an anti-freezing device for an expansion joint of a pressure gauge, which belongs to the field of pressure gauge connecting pieces and comprises a first connecting body and a second connecting body, wherein the bottom end of the first connecting body is fixedly connected with the upper end of the second connecting body, the first connecting body is communicated with the second connecting body, and the inner wall of the first connecting body is provided with an internal thread; the outer end surface of the bottom of the second connector is provided with an external thread; the position, close to the upper end, inside the first connecting body is fixedly connected with a fixed frame, the position, located at the bottom end of the fixed frame, inside the second connecting body is provided with a buffer groove, the middle position of the surface of the fixed frame is provided with a vertically through sliding groove, a sliding rod is slidably connected in the sliding groove, and the bottom end of the sliding rod is fixedly connected with a sealing plate; a plunger is arranged in the second connecting body and is in sliding fit with the first connecting body; the device can effectually prevent that the manometer from being frozen down under low temperature environment, can also effectually prevent that antifreeze from leaking extravagantly simultaneously, the effectual use of practicing thrift antifreeze.
Description
Technical Field
The utility model relates to the field of pressure gauge connecting pieces, in particular to an anti-freezing device for an expansion joint of a pressure gauge.
Background
At present, a pressure gauge joint arranged in a pipeline transmits pressure only through a pore channel in the pressure gauge joint, and liquid in the joint enters the pressure gauge joint through the pore channel to enable a pressure gauge pointer to indicate the pressure in the pipeline. In winter, the temperature is low, and the north part of China is generally below minus centigrade, so that the liquid entering the pressure gauge joint is frozen, the pressure gauge is frozen or the pressure indication is inaccurate, and a plurality of disadvantages are brought to production, particularly oil well production of oil fields.
The anti-freezing method of the existing pressure gauge joint is that anti-freezing liquid is injected into the joint, and the anti-freezing liquid in the joint is separated from liquid of external equipment, so that the anti-freezing liquid enters the pressure gauge joint, and the anti-freezing effect can be achieved.
Therefore, the utility model provides an anti-freezing device for an expansion joint of a pressure gauge, which aims to solve the problems in the background art.
Disclosure of Invention
The utility model aims to provide an anti-freezing device for an expansion joint of a pressure gauge, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: an anti-freezing device for an expansion joint of a pressure gauge comprises a first connecting body and a second connecting body, wherein the bottom end of the first connecting body is fixedly connected with the upper end of the second connecting body, the first connecting body and the second connecting body are communicated with each other, and inner threads are arranged on the inner wall of the first connecting body; the outer end surface of the bottom of the second connector is provided with an external thread; a fixed frame is fixedly connected to the position, close to the upper end, inside the first connecting body, a buffer groove is arranged at the position, located at the bottom end, of the fixed frame inside the second connecting body, a vertically through sliding groove is arranged at the middle position of the surface of the fixed frame, a sliding rod is connected in the sliding groove in a sliding mode, and the bottom end of the sliding rod is fixedly connected with a sealing plate; and a plunger is arranged in the second connecting body and is in sliding fit with the first connecting body.
As a further scheme of the utility model: the diameter of the sealing plate is larger than that of the inner cavity of the second connecting body, and the diameter of the sealing plate is smaller than that of the buffer groove; the sealing plate is in sealing fit with the inner wall of the upper end of the buffer groove; the diameter through the closing plate is greater than second connector inner chamber diameter and the sealed laminating of closing plate and dashpot upper end inner wall can play the effect that prevents the antifreeze and leak, is less than the dashpot diameter through the closing plate diameter, can be when the seal groove removes the dashpot in, can make the antifreeze enter into first connector through the clearance between dashpot and the closing plate.
As a still further scheme of the utility model: the upper end of the fixed frame is fixedly connected with a spring, the upper end of the spring is fixedly connected with a pressing frame, and the distance from the bottom end of the pressing frame to the upper end of the supporting frame is smaller than the height of the buffer groove; when installing first connector in through with the manometer, the manometer will press the frame and press the internal bottommost position of first connector, press the frame and drive the closing plate downstream through the slide bar, when pressing the frame and remove bottommost position, the closing plate can not be in the dashpot bottommost position to can leave sufficient space for the antifreeze circulation between closing plate and the dashpot.
As a still further scheme of the utility model: a plurality of clamping grooves are uniformly formed in the surface of the plunger, sealing rings are arranged in the clamping grooves, the sealing rings are in clamping fit with the clamping grooves, and the sealing rings are attached to the inner wall of the second connector; can play the effect of promoting sealing washer stability through the draw-in groove, can play the effect of isolated antifreeze and water through the sealing washer.
As a still further scheme of the utility model: the inner wall of the second connector is uniformly and fixedly connected with a plurality of supporting blocks, and the supporting blocks are positioned at the bottom end of the plunger; can play the effect of injecing plunger bottommost position through the supporting shoe, can also prevent that the plunger from breaking away from the second connector with the plunger support column simultaneously.
Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
the anti-freezing liquid is injected into the second connecting body, the anti-freezing liquid is isolated from the liquid of external equipment through the plunger arranged in the second connecting body, the anti-freezing liquid can enter the pressure gauge connector during working, the anti-freezing effect is achieved, when the pressure gauge is disassembled, the second connecting body and the external equipment are disassembled firstly, the plunger moves to the surface of the supporting block at the moment, all the anti-freezing liquid flows into the second connecting body, the pressure gauge can be disassembled, when the pressure gauge is disassembled, the sliding rod drives the sealing plate to be attached to the buffer groove under the action of the spring, the first connecting body and the second connecting body are isolated, the anti-freezing liquid can be effectively prevented from being leaked while freezing is achieved, the working accuracy and the service life of the pressure gauge are improved, and the anti-freezing liquid is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic structural view in cross section of a front view of the present invention;
fig. 3 is a schematic diagram of the present invention with its internal structure broken away.
In the figure: 1-a first connector, 2-a second connector, 3-an internal thread, 4-an external thread, 5-a fixing frame, 6-a buffer groove, 7-a sliding groove, 8-a sliding rod, 9-a sealing plate, 10-a plunger, 11-a spring, 12-a pressing frame, 13-a clamping groove, 14-a sealing ring and 15-a supporting block.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, an anti-freezing device for an expansion joint of a pressure gauge includes a first connecting body 1 and a second connecting body 2, a bottom end of the first connecting body 1 is fixedly connected to an upper end of the second connecting body 2, the first connecting body 1 and the second connecting body 2 are connected to each other, and an inner wall of the first connecting body 1 is provided with an internal thread 3; the outer end surface of the bottom of the second connector 2 is provided with an external thread 4; a fixed frame 5 is fixedly connected to the position, close to the upper end, inside the first connecting body 1, a buffer groove 6 is arranged at the position, located at the bottom end of the fixed frame 5, inside the second connecting body 2, a sliding groove 7 which is communicated up and down is arranged at the middle position of the surface of the fixed frame 5, a sliding rod 8 is connected in the sliding groove 7 in a sliding mode, and the bottom end of the sliding rod is fixedly connected with a sealing plate 9; the second connector 2 is internally provided with a plunger 10, and the plunger 10 is in sliding fit with the first connector 1.
In this embodiment: the diameter of the sealing plate 9 is larger than that of the inner cavity of the second connector 2, and the diameter of the sealing plate 9 is smaller than that of the buffer groove 6; the sealing plate 9 is in sealing fit with the inner wall of the upper end of the buffer groove 6; the diameter through closing plate 9 is greater than 2 inner chamber diameters of second connector and the sealed laminating of closing plate 9 and 6 upper end inner walls of dashpot can play the effect that prevents the antifreeze and leak, is less than the diameter of dashpot 6 through closing plate 9 diameter, can be when the seal groove removes in the dashpot 6, can make the antifreeze enter into in the first connector 1 through the clearance between dashpot 6 and the closing plate 9.
In this embodiment: the upper end of the fixed frame 5 is fixedly connected with a spring 11, the upper end of the spring 11 is fixedly connected with a pressing frame 12, and the distance from the bottom end of the pressing frame 12 to the upper end of the supporting frame is less than the height of the buffer slot 6; when installing the manometer in first connecting body 1, the manometer will press frame 12 and press the bottommost position in first connecting body 1, press frame 12 and drive closing plate 9 through slide bar 8 and move down, when pressing frame 12 and moving bottommost position, closing plate 9 can not be in buffer slot 6 bottommost position to can make and leave sufficient space between closing plate 9 and the buffer slot 6 and flow for antifreeze.
In this embodiment: a plurality of clamping grooves 13 are uniformly formed in the surface of the plunger 10, sealing rings 14 are arranged in the clamping grooves 13, the sealing rings 14 are in clamping fit with the clamping grooves 13, and the sealing rings 14 are attached to the inner wall of the second connector 2; can play the effect of promoting sealing washer 14 stability through draw-in groove 13, can play the effect of isolated antifreeze and water through sealing washer 14.
In this embodiment: the inner wall of the second connector 2 is uniformly and fixedly connected with a plurality of supporting blocks 15, and the supporting blocks 15 are positioned at the bottom end of the plunger 10; the supporting block 15 can serve to limit the position of the lowermost end of the plunger 10, and support the plunger 10 to prevent the plunger 10 from being separated from the second connecting body 2.
The working principle of the utility model is as follows:
when a user uses the device, the external thread 4 on the surface of the second connecting body 2 is connected to external equipment, then the pressure gauge is inserted into the first connecting body 1, then the pressure gauge is rotated, under the action of the internal thread 3 in the first connecting body 1, the pressure gauge starts to move to the position in the first connecting body 1, when the pressure gauge contacts the pressing frame 12, the pressure gauge continues to be rotated, the pressing frame 12 starts to drive the sliding rod 8 to slide in the sliding groove 7, the sliding rod 8 drives the sealing plate 9 to move in the buffer groove 6, so that the sealing plate 9 starts to be separated from the contact with the buffer groove 6 and moves to the position in the buffer groove 6, and at the moment, a gap begins to exist between the buffer groove 6 and the sealing plate 9; after the pressure gauge is stably installed, the pressing frame 12 is located at the bottommost position in the first connecting body 1, the sealing plate 9 is located at the position in the buffer groove 6, and the first connecting body 1 and the second connecting body 2 are communicated; when the pressure is detected, the water inside the external device enters the second connecting body 2 and starts to squeeze the plunger 10, so that the plunger 10 moves upwards, the plunger 10 pushes the antifreeze into the first connecting body 1 when moving upwards, the antifreeze in the first connecting body 1 is finally extruded into the pressure gauge so that the pressure gauge starts to work, after the pressure gauge works, the second connecting body 2 is firstly detached from the surface of external equipment, the plunger 10 slides to the surface position of the supporting column under the action of self gravity after no pressure exists, the antifreeze liquid completely flows into the second connecting body 2, the pressure gauge can be detached, when the pressure gauge is detached, under the action of the spring 11, the sliding rod 8 drives the sealing plate 9 to move to the position attached to the buffer groove 6 again to separate the first connecting body 1 from the second connecting body 2, so that the anti-freezing solution can be effectively prevented from leaking.
Claims (5)
1. The utility model provides a manometer expansion joint freeze-proof device, includes first connector (1) and second connector (2), its characterized in that: the bottom end of the first connecting body (1) is fixedly connected with the upper end of the second connecting body (2), the first connecting body (1) and the second connecting body (2) are communicated with each other, and inner threads (3) are arranged on the inner wall of the first connecting body (1); the outer end surface of the bottom of the second connector (2) is provided with an external thread (4); a fixed frame (5) is fixedly connected to the position, close to the upper end, inside the first connecting body (1), a buffer groove (6) is arranged at the position, located at the bottom end of the fixed frame (5), inside the second connecting body (2), a sliding groove (7) which is through up and down is arranged at the middle position of the surface of the fixed frame (5), a sliding rod (8) is connected in the sliding groove (7) in a sliding mode, and the bottom end of the sliding rod is fixedly connected with a sealing plate (9); a plunger (10) is arranged inside the second connecting body (2), and the plunger (10) is in sliding fit with the first connecting body (1).
2. The antifreeze apparatus for expansion joint of pressure gauge as claimed in claim 1, wherein: the diameter of the sealing plate (9) is larger than that of the inner cavity of the second connecting body (2), and the diameter of the sealing plate (9) is smaller than that of the buffer groove (6); and the sealing plate (9) is in sealing fit with the inner wall of the upper end of the buffer groove (6).
3. The antifreeze apparatus for expansion joint of pressure gauge as claimed in claim 2, wherein: the utility model discloses a buffer slot, including mount (5), spring (11) upper end fixed connection press frame (12), the distance between press frame (12) bottom to the support frame upper end is less than the height of dashpot (6).
4. The antifreeze apparatus for expansion joint of pressure gauge as claimed in claim 1, wherein: plunger (10) surface evenly is equipped with a plurality of draw-in grooves (13), be equipped with sealing washer (14) in draw-in groove (13), sealing washer (14) and draw-in groove (13) joint cooperation and sealing washer (14) and the laminating of second connector (2) inner wall.
5. The antifreeze apparatus for expansion joint of pressure gauge as claimed in claim 1, wherein: the inner wall of the second connecting body (2) is uniformly and fixedly connected with a plurality of supporting blocks (15), and the supporting blocks (15) are located at the bottom end of the plunger (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122240790.9U CN215984995U (en) | 2021-09-15 | 2021-09-15 | Anti-freezing device for expansion joint of pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122240790.9U CN215984995U (en) | 2021-09-15 | 2021-09-15 | Anti-freezing device for expansion joint of pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215984995U true CN215984995U (en) | 2022-03-08 |
Family
ID=80466485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122240790.9U Expired - Fee Related CN215984995U (en) | 2021-09-15 | 2021-09-15 | Anti-freezing device for expansion joint of pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215984995U (en) |
-
2021
- 2021-09-15 CN CN202122240790.9U patent/CN215984995U/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 |
Granted publication date: 20220308 |