CN221301438U - Circular expansion tank - Google Patents
Circular expansion tank Download PDFInfo
- Publication number
- CN221301438U CN221301438U CN202323041152.XU CN202323041152U CN221301438U CN 221301438 U CN221301438 U CN 221301438U CN 202323041152 U CN202323041152 U CN 202323041152U CN 221301438 U CN221301438 U CN 221301438U
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- Prior art keywords
- shell
- air
- expansion tank
- fit
- circular expansion
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 230000008602 contraction Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Diaphragms And Bellows (AREA)
Abstract
The utility model aims to provide the circular expansion water tank with simple and convenient expansion and contraction of the internal elastic diaphragm, convenient assembly and disassembly and high use safety. The utility model comprises a shell, a fixing piece and a rear end cover, wherein an elastic diaphragm is connected in the shell, the shell is provided with a water inlet end, the water inlet end is provided with a mounting disc, the mounting disc is connected with the fixing piece, one side of the shell, which is far away from the water inlet end, is provided with an air inlet, the rear end cover is in threaded fit with the air inlet, and the fixing piece is in compression fit with the outer edge of the elastic diaphragm and is connected with an external pipeline. The utility model is applied to the technical field of heating pipeline expansion tanks.
Description
Technical Field
The utility model relates to the technical field of expansion tanks of heating pipelines, in particular to a round expansion tank.
Background
The expansion water tank is an important part in a heating ventilation air conditioning system, the expansion amount of system water is contained in the heating system, because the water in the heating system is easily influenced by thermal expansion and cold contraction, when the hot water is heated, the water volume in the heating system is increased, expansion occurs, the water pressure in the heating system is increased, when the water is cooled, the water volume in the heating system is reduced, the normal operation of the heating system is influenced, when the system leaks water and cools down, the water level in the expansion water tank is reduced, and the water in the expansion water tank is automatically supplemented into the heating system. During the heating process, water generally releases some air, and the expansion tank discharges the air, so that the operation efficiency of the heating system is improved, and the vertical structure in the traditional system is adopted.
The Chinese patent with publication number CN209013476U discloses an expansion water tank of a wall-mounted boiler, which comprises a shell, a water cavity shell, an air bag body, a controller, a water level sensor, a pressure sensor, an air valve, an air pump and a temperature sensor. The shell is a cylinder, and a controller is arranged on the outer wall of the shell. The water cavity shell is cylindrical and is arranged in the shell. The air bag body is arranged in the water cavity shell. The outer wall of the air bag body is uniformly provided with convex strips. The water level sensor is arranged in the buoy, the outer wall of the air bag body is provided with a pressure sensor, the air valve is arranged at the lower end of the joint of the air nozzle and the air pipe, and the air pump is arranged below the air valve. The controller is respectively and electrically connected with the water level sensor, the pressure sensor, the air valve and the air pump, the cylindrical water cavity shell is used, when the air bag body is inflated by water, the air bag body is in a stretching expansion state, when the air bag body is inflated and is tightly attached to the upper wall edge and the lower wall edge of the water cavity shell, the air bag body is contracted and restored to the original state in the contraction process, at the moment, the upper wall edge and the lower wall edge of the water cavity shell are easy to be clamped by friction, the contraction effect of the air bag body is influenced, and the expansion degree of the air bag body is reduced and the contraction performance is weakened after the air bag body is used for a long time.
Disclosure of utility model
The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing the circular expansion water tank with simple and convenient expansion and contraction of the internal elastic diaphragm, convenient installation and disassembly and high use safety.
The technical scheme adopted by the utility model is as follows: the utility model comprises a shell, a fixing piece and a rear end cover, wherein an elastic diaphragm is connected in the shell, the shell is provided with a water inlet end, the water inlet end is provided with a mounting disc, the mounting disc is connected with the fixing piece, one side of the shell, which is far away from the water inlet end, is provided with an air inlet, the rear end cover is in threaded fit with the air inlet, and the fixing piece is in compression fit with the outer edge of the elastic diaphragm and is connected with an external pipeline.
Further, the mounting plate is provided with a fixed outer edge and a plurality of positioning holes, the fixed outer edge is tightly attached to the fixing piece, and the positioning holes are connected with the fixing piece through locking pieces.
Further, the mounting plate is welded with the water inlet end of the shell.
Further, a plurality of knob blocks are arranged on the rear end cover at equal intervals, a threaded column is connected to the middle of the rear end cover, and the threaded column is in threaded fit with the air inlet.
Further, the middle part of the shell is provided with a convex line, and the inside of the shell is provided with a groove corresponding to the convex line.
Further, both ends of the shell are arc-shaped, and the inner wall of the shell can be tightly attached to the elastic diaphragm after water filling.
Further, the air inlet comprises an air charging port, an air tap, a valve core and an elastic piece, wherein the air charging port is fixedly connected with the shell, the air tap is in threaded connection with the air charging port, the valve core is in sliding fit with the air tap, the valve core is provided with a first pressing sheet and a second pressing sheet, the first pressing sheet is in tight fit with the lower part of the air tap, the second pressing sheet is in pushing fit with one end of the elastic piece, and the other end of the elastic piece is in supporting fit with the upper part of the air tap.
Further, the water inlet end of the shell is of a narrow-mouth structure.
The beneficial effects of the utility model are as follows: the sealing groove is pressed with the outer edge of the elastic diaphragm and is fixed on the shell through the locking piece, the sealing performance is good in the use process, the installation is simple and convenient, the shell is a narrow opening in a gradually shrinking shape at one side of the water inlet end, the installation plate is welded at the tail end of the narrow opening, the width of the installation plate is larger than the diameter of the narrow opening, therefore, when the installation plate and the fixing piece are locked, a certain installation space is reserved, meanwhile, the gradually shrinking narrow opening structure is in an arc shape, the elastic diaphragm is not easy to rub with the inner wall of the shell when being stretched and retracted, and further, the elastic diaphragm is only subjected to the tension effect when water enters, so that the service life of the elastic diaphragm is shortened due to additional friction force factors, the rear end cover structure can be covered by a knob when the air inlet is not connected with the air inlet, and the air inlet is prevented from being polluted or damaged by external environment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded view of the present utility model;
FIG. 3 is a cross-sectional view of the present utility model;
FIG. 4 is another view of a schematic diagram of the housing structure of the present utility model;
FIG. 5 is a schematic view of the structure of the rear end cap of the present utility model;
fig. 6 is a schematic view of the structure of the air intake of the present utility model.
Detailed Description
In this embodiment, as shown in fig. 1 to 6, the utility model comprises a housing 1, a fixing member 3 and a rear end cover 4, wherein an elastic diaphragm 2 is connected in the housing 1, the housing 1 is provided with a water inlet end, the water inlet end is provided with a mounting plate 5, the mounting plate 5 is connected with the fixing member 3, one side of the housing 1 away from the water inlet end is provided with an air inlet 6, the rear end cover 4 is in threaded fit with the air inlet 6, the fixing member 3 is in press fit with the outer edge of the elastic diaphragm 2 and is connected with an external pipeline, the housing 1 is of a metal structure, the fixing member 3 is a flange end cover, one end of the fixing member 3 connected with the external pipeline is provided with a threaded connection port, the middle part at mounting 3 is provided with along extrusion fit's seal groove with elastic diaphragm 2, seal groove and elastic diaphragm 2 are along extrusion and fix on shell 1 through the retaining member, sealing performance is good in the use, the installation is simple and convenient, shell 1 is the narrow mouth of gradual contraction form in water inlet end one side, the mounting plate 5 welds in the end of narrow mouth, the width of mounting plate 5 is greater than the narrow mouth diameter, thereby when mounting plate 5 and mounting 3 lock, leave certain installation space, the narrow mouth structure of gradual contraction is the arcuation simultaneously, elastic diaphragm 2 is difficult to take place the friction with shell 1 inner wall when stretching and retracting, and then elastic diaphragm 2 only receives the tension effect when the water gets into, avoid extra friction factor to reduce elastic diaphragm 2 life.
In this embodiment, mounting disc 5 is equipped with fixed outer edge 51 and a plurality of locating hole 52, fixed outer edge 51 with mounting 3 closely laminates, and is a plurality of locating hole 52 passes through the retaining member mounting 3 is connected, is equipped with the seal groove in the mounting disc middle part, and the seal groove closely laminates with elastic diaphragm 2, and the border of fixed outer edge 51 forms with the bottom surface of mounting disc 5 and holds the chamber, holds the space that holds the outer edge of chamber structure and provides elastic diaphragm 2, and cooperation seal groove realizes extrusion seal, avoids using and makes because the too big leakage that leads to of water pressure, and the retaining member is screw nut cooperation screw up.
In this embodiment, the mounting plate 5 is welded to the water inlet end of the housing 1.
In this embodiment, rear end cap 4 equidistant a plurality of knob piece 41 that are provided with, the middle part of rear end cap 4 is connected with screw thread post 42, screw thread post 42 with air inlet 6 screw thread fit, knob piece 41 can strengthen rear end cap 4 bulk strength, can the impetus at knob installation or dismantlement in-process simultaneously, convenient to use is high-efficient, but rear end cap 4 structure knob cover when air inlet 6 does not insert the use, avoids air inlet 6 to be polluted or collision damage by external environment.
In this embodiment, the middle part of the housing 1 is provided with the convex line 11, the inside of the housing 1 is provided with the groove 12 corresponding to the convex line 11, and a certain gas space is reserved inside the groove 12 under the condition that the elastic diaphragm 2 is inflated by water filling, so that the elastic diaphragm 2 is prevented from being excessively clung to affect the contraction efficiency.
In this embodiment, the both ends of shell 1 are circular-arc, the inner wall of shell 1 can with fill the back elastic diaphragm 2 closely laminate, and the difficult friction that takes place when circular-arc structure cooperation elastic diaphragm 2 expansion shrink, and then elastic diaphragm 2 only receives the tension effect when water gets into, has avoided extra friction factor to reduce elastic diaphragm 2 life.
In this embodiment, the air inlet 6 includes an air charging port 61, an air tap 62, a valve core 63 and an elastic member 64, the air charging port 61 is fixedly connected with the housing 1, the air tap 62 is in threaded connection with the air charging port 61, the valve core 63 is in sliding fit with the air tap 62, the valve core 63 is provided with a first pressing sheet and a second pressing sheet, the first pressing sheet is in close fit with the lower part of the air tap 62, the second pressing sheet is in pushing fit with one end of the elastic member 64, the other end of the elastic member 64 is in supporting fit with the upper part of the air tap 62, and the elastic member 64 is a spring.
In this embodiment, the water inlet end of shell 1 is the narrow mouth structure, and convenient the gripping when the process is dismantled in narrow mouth structure staff's installation, and the narrow mouth is connected with mounting disc 5, and the retaining member of being convenient for stretches out the installation when the installation, does not need additionally to drill, improves convenient to use.
The working principle of the utility model is as follows:
The elastic diaphragm 2 is placed into the shell 1, the outer edge of the elastic diaphragm 2 is in contact with the bottom surface of the mounting plate 5, then the fixing piece 3 is tightly attached to the mounting plate 5, a plurality of groups of locking pieces are used for locking, at the moment, the sealing groove and the outer edge of the elastic diaphragm 2 are tightly pressed to form a seal, a worker is connected with an external pipeline through the fixing piece 3, and the air inlet 6 is connected with an external air path structure.
While the embodiments of this utility model have been described in terms of practical aspects, they are not to be construed as limiting the meaning of this utility model, and modifications to the embodiments and combinations with other aspects thereof will be apparent to those skilled in the art from this description.
Claims (8)
1. The utility model provides a circular expansion tank, it includes shell (1), be connected with elastic diaphragm (2) in shell (1), its characterized in that: the circular expansion tank still includes mounting (3) and rear end cap (4), shell (1) is equipped with into water end, it is provided with mounting plate (5) to advance water end, mounting plate (5) with mounting (3) are connected, shell (1) is kept away from one side of advancing water end is equipped with air inlet (6), rear end cap (4) with air inlet (6) screw-thread fit, mounting (3) with the outer edge compression fit of elastic diaphragm (2) is connected with outside pipeline.
2. A circular expansion tank according to claim 1, wherein: the mounting plate (5) is provided with a fixed outer edge (51) and a plurality of positioning holes (52), the fixed outer edge (51) is tightly attached to the fixing piece (3), and the positioning holes (52) are connected with the fixing piece (3) through locking pieces.
3. A circular expansion tank according to claim 2, wherein: the mounting plate (5) is welded with the water inlet end of the shell (1).
4. A circular expansion tank according to claim 1, wherein: the novel air inlet valve is characterized in that a plurality of knob blocks (41) are arranged on the rear end cover (4) at equal intervals, a threaded column (42) is connected to the middle of the rear end cover (4), and the threaded column (42) is in threaded fit with the air inlet (6).
5. A circular expansion tank according to claim 1, wherein: the middle part of shell (1) is equipped with burr (11), shell (1) inside be equipped with burr (11) corresponding recess (12).
6. A circular expansion tank according to claim 1, wherein: both ends of the shell (1) are arc-shaped, and the inner wall of the shell (1) can be tightly attached to the elastic diaphragm (2) after water filling.
7. A circular expansion tank according to claim 1, wherein: the air inlet (6) comprises an air charging port (61), an air tap (62), a valve core (63) and an elastic piece (64), wherein the air charging port (61) is fixedly connected with the outer shell (1), the air tap (62) is in threaded connection with the air charging port (61), the valve core (63) is in sliding fit with the air tap (62), the valve core (63) is provided with a first pressing piece and a second pressing piece, the first pressing piece is in tight fit with the lower part of the air tap (62), the second pressing piece is in pushing fit with one end of the elastic piece (64), and the other end of the elastic piece (64) is in supporting fit with the upper part of the air tap (62).
8. A circular expansion tank according to claim 1, wherein: the water inlet end of the shell (1) is of a narrow-mouth structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323041152.XU CN221301438U (en) | 2023-11-10 | 2023-11-10 | Circular expansion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323041152.XU CN221301438U (en) | 2023-11-10 | 2023-11-10 | Circular expansion tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221301438U true CN221301438U (en) | 2024-07-09 |
Family
ID=91751693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323041152.XU Active CN221301438U (en) | 2023-11-10 | 2023-11-10 | Circular expansion tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221301438U (en) |
-
2023
- 2023-11-10 CN CN202323041152.XU patent/CN221301438U/en active Active
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