CN219606152U - PE pipe pressure relief device - Google Patents
PE pipe pressure relief device Download PDFInfo
- Publication number
- CN219606152U CN219606152U CN202321053438.7U CN202321053438U CN219606152U CN 219606152 U CN219606152 U CN 219606152U CN 202321053438 U CN202321053438 U CN 202321053438U CN 219606152 U CN219606152 U CN 219606152U
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- pressure relief
- pipe
- plate
- spring
- baffle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The utility model provides a PE pipe pressure relief device, which comprises a PE pipe main body, a pressure relief pipe, a pressure relief hole and an adjusting component; the adjusting component comprises a piston plate, a baffle, a screw rod, a moving rod, a knob, a circular block, a spring and a circular ring-shaped plate; the annular plate is fixedly arranged on the inner wall of the pressure relief pipe; the piston plate is arranged in the pressure relief pipe in a sealing and sliding manner, and the bottom of the piston plate is contacted with the circular plate; the baffle is fixedly arranged at the top of the pressure relief pipe, and a through hole is formed in the middle of the baffle; the part of the screw rod above the annular flange penetrates out of the baffle plate and is provided with a knob, and the part of the screw rod below the annular flange is provided with external threads; the bottom end of the movable rod is fixedly connected with the round block, and the top end of the movable rod is provided with a threaded inner hole which can be in threaded connection with a part of the screw rod, which is positioned below the annular flange; a spring is placed between the knob and the piston rod. According to the PE pipe pressure relief device, when the elastic force of the spring is adjusted, the round block does not rotate together with the screw rod, so that the labor is less, the operation is easy, and the spiral state of the spring is not changed.
Description
Technical Field
The utility model relates to a pressure relief device, in particular to a PE pipe pressure relief device, and belongs to the technical field of PE pipe pressure relief.
Background
The PE pipe is divided into a medium-density polyethylene pipe and a high-density polyethylene pipe, the medium-density polyethylene pipe is suitable for conveying gaseous artificial gas, natural gas and liquefied petroleum gas, and the high-density polyethylene pipe is mainly used for conveying natural gas. Compared with a steel pipe, the PE pipe has simple construction process and certain flexibility, and more importantly, the PE pipe does not need to be subjected to corrosion prevention treatment, so that a large number of working procedures can be saved.
When the PE pipe is used for conveying media, a safety valve is arranged at the top of the PE pipe for realizing the pressure relief function. The common safety relief valves at the top of PE pipes are mostly spring-type or heavy-hammer-type pressure relief valves, and the pressure relief valves of the type generally use spring structures; when the spring is used for a long time, the spring is easy to be reduced in elasticity due to aging or other reasons, and the spring needs to be adjusted at the moment to increase the pressure of the spring; in the prior art, the adjusting structure is generally directly screwed up and down through a bolt or other adjusting structures to change the force of the downward-pressing spring, but when the adjusting structure is screwed, the surface contacted with the spring rotates relatively with the spring, and at the moment, the pressure between the spring and the contact surface is very large due to the existence of medium pressure, so that the operation is very difficult, the spiral state of the spring is easy to change, and the adjusted or installed spring cannot work in a normal state.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to overcome the technical defects that the prior safety relief valve mostly uses a spring type or heavy hammer type structure, when the pressure of the spring needs to be regulated for a long time, the prior regulating structure is difficult to operate due to the existence of medium pressure, and the spiral state of the spring is easy to change after laborious regulation, so that the regulated or installed spring cannot work in a normal spiral state, and the PE pipe relief device is easy to operate and can not change the spiral state of the spring after regulation.
The PE pipe pressure relief device comprises a PE pipe main body, a pressure relief pipe communicated with the PE pipe main body and a pressure relief hole formed in the pressure relief pipe;
the pressure relief pipe is characterized by further comprising an adjusting assembly arranged in the pressure relief pipe, wherein the adjusting assembly comprises a piston plate, a baffle, a screw rod, a moving rod, a knob, a round block, a spring and a circular plate;
the annular plate is fixedly arranged on the inner wall of the pressure relief pipe and positioned below the pressure relief hole;
the piston plate is arranged in the pressure relief pipe in a sealing and sliding manner, and the bottom of the piston plate is contacted with the circular plate;
the baffle is fixedly arranged at the top of the pressure relief pipe, and a through hole is formed in the middle of the baffle;
the screw rod is provided with an annular flange, the part above the annular flange upwards penetrates out of the baffle plate, and a knob is fixedly arranged on the part penetrating out of the baffle plate; an external thread is arranged on a part below the annular flange;
one end of the movable rod is fixedly connected with the round block, and the other end of the movable rod is provided with a threaded inner hole and can be in threaded connection with the lower part of the screw rod;
a spring is arranged between the round block and the piston plate;
in a normal state, the piston plate is in contact with the annular plate, the pressure relief hole is blocked by the piston plate or is positioned above the piston plate, and the pressure relief hole is not communicated with the PE pipe main body;
and during pressure relief, the piston plate moves upwards until the piston plate moves to the position above the pressure relief hole, and at the moment, the pressure relief hole is communicated with the PE pipe main body.
As a preferred solution, the device further comprises an anti-rotation structure arranged between the baffle and the round block.
As a preferred aspect, the anti-rotation structure includes:
one end of the fixed sleeve is fixedly connected to the top surface of the round block, the other end of the fixed sleeve extends towards one side of the baffle plate and is provided with an inner cavity, and an opening of the inner cavity is formed in the other end of the fixed sleeve;
and one end of the fixed guide post is fixedly connected to the bottom surface of the baffle plate, and the other end of the fixed guide post extends towards the direction of the round block and can be inserted into the inner cavity to realize telescopic connection.
As a preferred solution, the fixing sleeve is provided with at least two on the round block, and the fixing guide post is also provided with at least two on the baffle correspondingly.
As a preferable scheme, a first mounting hole for fixing one end of the through-connected spring is arranged on the bottom surface of the round block.
As a preferred scheme, a second mounting hole for fixing the other end penetrating through the spring is arranged on the top surface of the piston plate.
As a preferable scheme, a bearing is fixedly arranged on the inner wall of the through hole of the baffle, and the inner side of the inner ring of the bearing is welded and connected with the outer side of the screw rod.
As a preferable scheme, the outer side of the piston plate is adhered and coated with a sealing rubber, and the outer side of the sealing rubber is in movable contact with the inner wall of the pressure release pipe.
The technical scheme provided by the utility model has the following advantages:
1. the PE pipe pressure relief device comprises a PE pipe main body, a pressure relief pipe, a pressure relief hole formed in the pressure relief pipe and an adjusting component arranged in the pressure relief pipe, wherein the adjusting component comprises a piston plate, a baffle, a screw rod, a moving rod, a knob, a round block, a spring and a circular plate; the annular plate is fixedly arranged on the inner wall of the pressure relief pipe and positioned below the pressure relief hole; the piston plate is arranged in the pressure relief pipe in a sealing and sliding manner, and the bottom of the piston plate is contacted with the circular plate; the baffle is fixedly arranged at the top of the pressure relief pipe, and a through hole is formed in the middle of the baffle; the part of the screw rod above the annular flange penetrates out of the baffle plate and is provided with a knob, and the part of the screw rod below the annular flange is provided with external threads; the bottom end of the movable rod is fixedly connected with the round block, and the top end of the movable rod is provided with a threaded inner hole which can be in threaded connection with a part of the screw rod, which is positioned below the annular flange; a spring is placed between the knob and the piston rod. In a normal state, the elastic force of the spring is larger than the pressure of the medium in the PE pipe main body, and at the moment, the piston plate is pushed by the elastic force of the spring to be in extrusion contact with the annular plate; when the pressure of the medium in the PE pipe main body is overlarge and exceeds the elasticity of the spring, the medium pushes the piston plate to move upwards until the pressure relief hole is communicated with the PE pipe main body, and the medium is discharged from the pressure relief hole for pressure relief; according to the PE pipe pressure relief device, when the telescopic pressure of the spring is regulated, the screw rod is rotated through the knob, the relative distance between the screw rod and the movable rod is regulated, so that the distance between the round block and the piston plate is regulated, and as the round block does not rotate together with the screw rod, the labor is less, the operation is easy, the spiral state of the spring is not changed, and the spring can work in an initial form; further, an anti-rotation structure can be further arranged to better avoid the round block from rotating along with the screw rod.
2. The PE pipe pressure release device comprises the fixed sleeve and the fixed guide post, wherein one end of the fixed guide post is fixedly connected to the bottom surface of the baffle plate, and the baffle plate is fixedly arranged on the pressure release pipe, so that when the screw rod rotates to change the distance between the screw rod and the movable rod, the fixed guide post and the fixed sleeve can play a role in preventing the round block from rotating along with the screw rod, thereby further ensuring the convenience of operation and not changing the spiral state of the spring.
3. According to the PE pipe pressure relief device, the first mounting hole for fixing one end of the cross-connected spring is formed in the bottom surface of the round block, the second mounting hole for fixing the other end of the cross-connected spring is formed in the top surface of the piston plate, and after the two ends of the spring are respectively cross-connected into the first mounting hole and the second mounting hole, the spring can be limited and torsion is avoided.
4. According to the PE pipe pressure relief device, the bearing is fixedly arranged in the through hole of the baffle, the inner side of the inner ring of the bearing is welded with the outer side of the screw rod, and the PE pipe pressure relief device is mounted through the bearing, so that the resistance of a rotating knob is smaller, and the operation is more convenient.
Drawings
In order to more clearly illustrate the technical solutions in the prior art or in the embodiments of the present utility model, the following brief description is given of the drawings used in the description of the prior art or the embodiments.
Fig. 1 is a schematic diagram of the overall structure of the pressure relief device of the PE pipe of the present utility model.
Fig. 2 is a cross-sectional view of the pressure relief tube of fig. 1 with an adjustment assembly mounted thereto.
Fig. 3 is an assembly view of the adjustment assembly of fig. 1.
Fig. 4 is another perspective view of fig. 3.
Reference numerals: 1. an adjustment assembly; 2. a PE tube body; 3. a pressure relief tube; 4. a pressure relief hole; 5. a piston plate; 6. a baffle; 7. a screw rod; 8. a moving rod; 9. a knob; 10. round blocks; 11. a spring; 12. fixing the guide post; 13. fixing the sleeve; 14. a circular plate; 15. an annular flange.
Detailed Description
In order that those skilled in the art will better understand the present solution, a technical solution according to an embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiment is only a part of the embodiment of the present utility model, not all of the embodiment. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, shall fall within the scope of the utility model.
It should be noted that the terms "first," "second," and the like in the claims and description herein are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model can be understood by those skilled in the art according to the specific circumstances. In addition, the term "plurality" shall mean two as well as more than two. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The embodiment provides a PE pipe pressure relief device, as shown in fig. 1-4, comprising a PE pipe main body 2, a pressure relief pipe 3 communicated with the PE pipe main body 2, and a pressure relief hole 4 arranged on the pressure relief pipe 3; the pressure release pipe is characterized by further comprising an adjusting assembly 1 arranged inside the pressure release pipe 3, wherein the adjusting assembly 1 comprises a piston plate 5, a baffle 6, a screw rod 7, a moving rod 8, a knob 9, a round block 10, a spring 11 and a circular plate 14.
The annular plate 14 is fixedly arranged on the inner wall of the pressure relief pipe 3 and is positioned below the pressure relief hole 4; the piston plate 5 is arranged in the pressure release pipe 3 in a sealing and sliding manner, and the bottom of the piston plate is contacted with the circular plate 14; the baffle 6 is fixedly arranged at the top of the pressure relief pipe 3, and a through hole is formed in the middle of the baffle; the screw rod 7 is provided with an annular flange 15, a part above the annular flange 15 penetrates out of the baffle 6 upwards, and a knob 9 is fixedly arranged on the part penetrating out of the baffle 6; on the portion below the annular flange 15, there is an external thread; one end of the movable rod 8 is fixedly connected with the round block 10, and the other end of the movable rod is provided with a threaded inner hole and can be in threaded connection with the lower part of the screw rod 7; a spring 11 is placed between the knob 10 and the piston plate 5.
In a normal state, the piston plate 5 is in contact with the annular plate 14, the pressure relief hole 4 is blocked by the piston plate 5 or is positioned above the piston plate 5, and the pressure relief hole 4 is not communicated with the PE pipe main body 2;
during pressure relief, the piston plate 5 moves upwards until the piston plate moves above the pressure relief hole 4, and at the moment, the pressure relief hole 4 is communicated with the PE pipe main body 2.
In the PE pipe pressure relief device of the embodiment, when the expansion pressure of the spring 11 is adjusted, the screw rod 7 is rotated through the knob 9, and the relative distance between the screw rod 7 and the movable rod 8 is adjusted, so that the distance between the round block 10 and the piston plate 5 is adjusted, and the spiral state of the spring 11 is not changed because the round block 10 does not rotate together with the screw rod 7, so that the spring 11 can work in an initial form; further, an anti-rotation structure may be further provided to better avoid the round block 10 from rotating along with the screw rod 7.
The anti-rotation structure is arranged between the baffle 6 and the round block 10, and comprises: a fixing sleeve 13 and a fixing guide post 12.
One end of the fixed sleeve 13 is fixedly connected to the top surface of the round block 10, the other end extends towards one side of the baffle 6 and is provided with an inner cavity, and an opening of the inner cavity is formed in the other end; one end of the fixed guide post 12 is fixedly connected to the bottom surface of the baffle 6, and the other end extends towards the direction of the round block 10 and can be inserted into the inner cavity to realize telescopic connection.
Since one end of the fixed guide post 12 is fixedly connected to the bottom surface of the baffle 6, and the baffle 6 is fixedly installed on the pressure release tube 3, when the screw rod 7 rotates to change the distance between the screw rod 7 and the moving rod 8, the fixed guide post 12 and the fixed sleeve 13 can play a role in preventing the round block 10 from following the screw rod 7 to rotate.
At least two fixing sleeves 13 are provided on the round block 10, and at least two fixing guide posts 12 are provided on the baffle 6 correspondingly.
The bottom surface of the round block 10 is provided with a first mounting hole for fixing and penetrating one end of the spring 11, the top surface of the piston plate 5 is provided with a second mounting hole for fixing and penetrating the other end of the spring 11, and the two ends of the spring 11 are respectively penetrated and connected inside the first mounting hole and the second mounting hole, so that the spring 11 can be limited and torsion is avoided. The first and second mounting holes are not shown in the figures.
The inner wall of the through hole of the baffle 6 is fixedly provided with a bearing, the inner side of the inner ring of the bearing is in welded connection with the outer side of the screw rod 7, the resistance of the rotating knob 9 is smaller through the installation realized by the bearing, and the operation is more convenient.
The outside bonding cladding of piston board 5 has the sealing rubber, the outside of sealing rubber and the inner wall movable contact of pressure release pipe 3.
The working process of the PE pipe pressure relief device in the embodiment is as follows:
in a normal state, the elastic force of the spring 11 is larger than the pressure of the medium in the PE pipe main body 2, and at the moment, the piston plate 5 is pushed by the elastic force of the spring 11 to be in extrusion contact with the annular plate 14; when the pressure of the medium in the PE pipe main body is overlarge and pressure relief is needed, the medium pressure exceeds the elasticity of the spring 11 at the moment, the medium pushes the piston plate 5 to move upwards until the pressure relief hole 4 is communicated with the PE pipe main body 2, and the medium is discharged from the pressure relief hole 4 for pressure relief;
when the spring 11 is used for a long time and the elasticity is weakened, the screw rod 7 can be driven to rotate through the operation knob 9, the screw rod 7 is screwed out from the threaded inner hole of the moving rod 8, the relative distance between the screw rod 7 and the moving rod 8 is prolonged, at the moment, the round block 10 connected below the moving rod 8 moves downwards to press the spring 11, and therefore the pressure of the spring 11 on the piston plate 5 is enhanced; since the round block 10 does not rotate together with the screw rod 7, even if the adjustment is convenient, the spiral state of the spring 11 itself is not easily changed.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious changes and modifications which are extended therefrom are still within the scope of the present innovative teachings.
Claims (8)
1. The PE pipe pressure relief device comprises a PE pipe main body (2), a pressure relief pipe (3) communicated with the PE pipe main body (2), and a pressure relief hole (4) formed in the pressure relief pipe (3); the method is characterized in that:
the pressure release device is characterized by further comprising an adjusting component (1) arranged in the pressure release pipe (3), wherein the adjusting component (1) comprises a piston plate (5), a baffle plate (6), a screw rod (7), a moving rod (8), a knob (9), a round block (10), a spring (11) and a circular plate (14);
the annular plate (14) is fixedly arranged on the inner wall of the pressure relief pipe (3) and is positioned below the pressure relief hole (4);
the piston plate (5) is arranged in the pressure relief pipe (3) in a sealing and sliding manner, and the bottom of the piston plate is in contact with the circular plate (14);
the baffle (6) is fixedly arranged at the top of the pressure relief pipe (3), and a through hole is formed in the middle of the baffle;
the screw rod (7) is provided with an annular flange (15), the part above the annular flange (15) upwards penetrates out of the baffle plate (6), and a knob (9) is fixedly arranged on the part penetrating out of the baffle plate (6); -on the portion below the annular flange (15), an external thread is provided;
one end of the movable rod (8) is fixedly connected with the round block (10), and the other end of the movable rod is provided with a threaded inner hole and can be in threaded connection with the lower part of the screw rod (7);
a spring (11) is arranged between the round block (10) and the piston plate (5);
in a normal state, the piston plate (5) is in contact with the annular plate (14), the pressure relief hole (4) is blocked by the piston plate (5) or is positioned above the piston plate (5), and the pressure relief hole (4) is not communicated with the PE pipe main body (2);
and during pressure relief, the piston plate (5) moves upwards until the piston plate moves to the position above the pressure relief hole (4), and at the moment, the pressure relief hole (4) is communicated with the PE pipe main body (2).
2. The PE pipe pressure relief device according to claim 1, wherein: the anti-rotation structure is arranged between the baffle plate (6) and the round block (10).
3. The PE pipe pressure relief device according to claim 2, wherein: the anti-rotation structure comprises:
a fixed sleeve (13) with one end fixedly connected to the top surface of the round block (10) and the other end extending to one side of the baffle (6) and having an inner cavity with an opening on the other end;
and one end of the fixed guide post (12) is fixedly connected to the bottom surface of the baffle plate (6), and the other end of the fixed guide post extends towards the direction of the round block (10) and can be inserted into the inner cavity to realize telescopic connection.
4. A PE pipe pressure relief device according to claim 3, characterized in that: at least two fixing sleeves (13) are arranged on the round block (10), and at least two fixing guide posts (12) are correspondingly arranged on the baffle plate (6).
5. The PE pipe pressure relief device according to claim 1, wherein: the bottom surface of the round block (10) is provided with a first mounting hole for fixedly penetrating one end of the spring (11).
6. The PE pipe pressure relief device according to claim 5, wherein: the top surface of the piston plate (5) is provided with a second mounting hole for fixedly penetrating the other end of the spring (11).
7. The PE pipe pressure relief device according to claim 1, wherein: the inner wall of the through hole of the baffle plate (6) is fixedly provided with a bearing, and the inner side of the inner ring of the bearing is welded and connected with the outer side of the screw rod (7).
8. The PE pipe pressure relief device according to claim 1, wherein: the outside bonding cladding of piston board (5) has sealed rubber, the outside of sealed rubber and the inner wall movable contact of pressure release pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321053438.7U CN219606152U (en) | 2023-05-05 | 2023-05-05 | PE pipe pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321053438.7U CN219606152U (en) | 2023-05-05 | 2023-05-05 | PE pipe pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219606152U true CN219606152U (en) | 2023-08-29 |
Family
ID=87756781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321053438.7U Active CN219606152U (en) | 2023-05-05 | 2023-05-05 | PE pipe pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219606152U (en) |
-
2023
- 2023-05-05 CN CN202321053438.7U patent/CN219606152U/en active Active
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