CN215486431U - Pressure tank for water pump - Google Patents
Pressure tank for water pump Download PDFInfo
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- CN215486431U CN215486431U CN202121428505.XU CN202121428505U CN215486431U CN 215486431 U CN215486431 U CN 215486431U CN 202121428505 U CN202121428505 U CN 202121428505U CN 215486431 U CN215486431 U CN 215486431U
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Abstract
The utility model relates to a pressure tank for a water pump, which comprises a tank body made of plastics, a tank cover made of plastics and an air bag positioned in the tank body, wherein the tank body is provided with an opening, and the tank cover and the opening of the tank body are welded, fixed and sealed; the side wall of the opening of the air bag is fixedly connected with the side wall in the opening of the tank body and divides the tank body into an air chamber and a water chamber; the bottom of the tank body is provided with an air hole which is communicated with the air chamber, and the middle part of the tank cover is provided with a water hole which is communicated with the water chamber. The gasbag is packed into jar internal, and the cover seals jar body opening, and the jar body is made for plastics, and the cover adopts the conical surface cooperation with jar body opening, and then fixes cover and jar body sealing connection structure as an organic whole through the welded mode, and jar body and cover shaping are convenient, and is sealed effectual, and sealed back bulk strength is high, satisfies pressure balance needs, and long service life.
Description
Technical Field
The utility model belongs to the field of pressure containers, and particularly relates to a pressure tank for a water pump.
Background
The expansion tank is used in a closed water circulation system, plays a role in balancing water quantity and pressure, and avoids frequent opening of a safety valve and frequent water replenishing of an automatic water replenishing valve. The expansion tank can also play a role of a water replenishing tank besides the function of containing expansion water, after the water pump is started, water is supplied to a pipe network, redundant water is stored into the tank, the water level in the tank rises, air in the tank is compressed, and the pressure is increased accordingly. When the pressure in the tank reaches the specified upper limit pressure value, the upper limit contact is connected by the index of an electric contact pressure gauge communicated with the top of the tank through a pipeline, a signal is sent out, the power supply is cut off, and the pump is stopped.
The expansion tank consists of four parts of a tank body, an air bag, a water inlet/outlet and an air supplementing port. The tank body is generally made of carbon steel, and an anti-rust baking paint layer is arranged outside the tank body. The air bag is an integral air bag, and water only enters the air bag and does not contact the shell during operation. The tank body wall of carbon steel material is thinner, and the welding is sealed after adding the lid, because the high atmospheric pressure of the internal portion of jar causes the phenomenon that gas leakage appears in the welding position between the jar body and the closing cap easily for the pressure of the internal portion of overhead tank descends, and the effect of balanced water yield and pressure descends, still can cause the water pump to frequently open and stop, makes the operation of water pump receive the interference, still can influence the life of water pump when serious.
Disclosure of Invention
The utility model overcomes the defects that the existing pressure tank is welded by carbon steel, gas leakage is easy to occur at the welding part, pressure is reduced, the capacity of regulating water quantity and pressure of the pressure tank is influenced, and further the normal work and the service life of a water pump are influenced.
The specific technical scheme of the utility model is as follows: a pressure tank for a water pump comprises a tank body made of plastics, a tank cover made of plastics and an air bag positioned in the tank body, wherein the tank body is provided with an opening, and the tank cover and the opening of the tank body are welded, fixed and sealed; the side wall of the opening of the air bag is fixedly connected with the side wall in the opening of the tank body and divides the tank body into an air chamber and a water chamber; the bottom of the tank body is provided with an air hole which is communicated with the air chamber, and the middle part of the tank cover is provided with a water hole which is communicated with the water chamber.
The gasbag is packed into jar internal, and the cover seals a jar body opening, and a jar body is made for plastics, and the cover is made for plastics, and of course, the pressure index of overhead tank can be born to the intensity of plastics, and the cover adopts the conical surface cooperation with a jar body opening, and then fixes cover and jar body sealing connection structure as an organic whole through the welded mode, and jar body and cover shaping are convenient, and is sealed effectual, and sealed back bulk strength is high, satisfies the pressure balance needs, and long service life.
Preferably, the tank body is of a cylindrical structure, and the diameter of the inside of the tank body is gradually increased from the bottom of the tank body to the opening of the tank body; the air bag opening part is provided with a pressing ring, the pressing ring is pressed by the tank cover, and the air bag opening is fixed at the tank body opening part by the pressing ring. The diameter of the inner part of the tank body is changed, the diameter of the opening is the largest, the diameter of the position corresponding to the air inlet hole is small, the diameter of the position corresponding to the water inlet hole is large, and the water-air pressure balance is stable; the cover presses the press ring, the press ring presses the air bag, and the cover cannot influence the opening of the air bag when being fixed by extrusion welding.
Preferably, the compression ring is annular, one axial end of the compression ring is an extrusion flat end, a sealing ring installation groove is formed on the inner side of the extrusion flat end, the other axial end of the compression ring is an inwards concave clamping part, the clamping part is matched with the opening end of the air bag, an inner clamping edge is formed on the radial inner side of the clamping part, and an outer clamping edge is formed on the radial outer side of the clamping part; the sealing ring is clamped in the sealing ring mounting groove to form extrusion sealing with the tank cover. The compression ring compresses the air bag opening to ensure the sealing between the air chamber and the water chamber.
Further preferably, the inner wall of the opening of the tank body is provided with a clamping edge, an annular groove is formed in the outer side of the clamping edge, an outwards-turned annular edge is arranged at the opening of the air bag, a clamping groove is formed, the clamping groove is used for being matched with the clamping edge, and the annular edge is used for being matched with the annular groove.
Preferably, the position of the opening of the tank body corresponding to the ring groove is a thickened part, and the thickness of the thickened part is greater than that of the rest parts of the tank body; the inner wall of the thickened part of the tank body extends axially to form a flange, the radial outer side of the flange forms a trapezoidal concave part, and both sides of the trapezoidal concave part are conical surfaces.
Preferably, the tank cover is circular, the outer peripheral surface of the tank cover is the conical surface, and the conical surface is matched with the conical surface on the outer side of the trapezoidal concave part at the opening of the tank body; the middle part of the tank cover is provided with a water hole which runs through two end faces of the tank cover, the middle part of the tank cover is also embedded with a threaded connecting column, and the threaded connecting column and the tank cover are integrally formed.
Further preferably, the cover is gradually arched towards the end face of the inner part of the tank body from the periphery to the middle, a convex ring which is convex and concentric with the water hole is arranged on the end face, two grooves are radially arranged on the convex ring, and the interval between the two grooves is 180 degrees.
Preferably, the threaded connecting column is divided into two sections, the middle of the threaded connecting column is divided by a rectangular ring, one section is a threaded section, the other section is a parallel sawtooth section, the parallel sawtooth section is embedded into the tank cover, and the threaded section is exposed out of the tank cover.
Preferably, the air hole at the bottom of the tank body is provided with an air tap, and the outer part of the air tap is sleeved with a sealing cover.
The utility model has the beneficial effects that: the gasbag is packed into jar internal, and the cover seals a jar body opening, and a jar body is made for plastics, and the cover is made for plastics, and of course, the pressure index of overhead tank can be born to the intensity of plastics, and the cover adopts the conical surface cooperation with a jar body opening, and then fixes cover and jar body sealing connection structure as an organic whole through the welded mode, and jar body and cover shaping are convenient, and is sealed effectual, and sealed back bulk strength is high, satisfies the pressure balance needs, and long service life.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the inclined upward perspective of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of a bladder configuration of the present invention;
FIG. 5 is a schematic view of a pressure ring configuration of the present invention;
FIG. 6 is a schematic view of a can lid according to the present invention;
FIG. 7 is a cross-sectional view of a can lid of the present invention;
FIG. 8 is an exploded view of the can lid of FIG. 7 according to the present invention;
in the figure: 1. the tank body, 2, a sealing cover, 3, a thickened part, 4, an inclined rib, 5, a tank cover, 6, a reinforcing rib, 7, a dust cover, 8, a sealing rubber ring, 9, a water hole, 10, a sealing ring, 11, a pressing ring, 12, an air bag, 13, a water chamber, 14, an air chamber, 15, an air nozzle, 16, an air hole, 17, an inner conical surface, 18, an annular groove, 19, a clamping edge, 20, a flange, 21, a clamping part, 22, a clamping groove, 23, a flat wall, 24, an annular edge, 25, a sealing ring mounting groove, 26, a limiting block, 27, a conical surface, 28, a groove, 29, a convex ring, 30, a threaded connection column, 31, an inner column, 32, a sinking groove, 33, a rectangular ring, 34 and a parallel sawtooth section.
Detailed Description
The utility model is further described by the following specific embodiments in conjunction with the accompanying drawings.
Example (b):
as shown in fig. 1 and 2, the pressure tank for the water pump comprises a tank body 1 made of high-strength plastic, a tank cover 5 made of high-strength plastic and an air bag 12 arranged in the tank body, wherein the air bag divides the tank body into an air chamber 14 and a water chamber 13.
As shown in fig. 4, the airbag has an opening, the bottom of the airbag is closed to form a bag body, the size of the opening of the airbag is the largest, the opening of the airbag is circular, the bag body of the airbag is triangular, three flat walls 23 are arranged on the outer surface of the bag body, circular arc curved surface transition is formed between the circumferential upper flat walls, inclined surface transition is formed between the flat walls and the opening of the airbag, the intersection position of the inclined surface and the flat walls is a straight edge, and the inclined surface inclines towards the outer side of the opening of the airbag and forms an arc-shaped edge. An outward-turned ring edge 24 is arranged at the opening of the air bag, and a ring of clamping grooves 22 are formed after the ring edge is turned outwards.
As shown in fig. 3, the can body has an opening, and the can lid is welded and sealed to the opening of the can body. The tank body is of a cylindrical structure, and the diameter of the inner part of the tank body is gradually increased from the bottom of the tank body to the opening of the tank body. The bottom of the tank body is provided with an air hole 16 which is communicated with the air chamber. The gas pocket department of jar body bottom is provided with air cock 15, and the sealing cover 2 has been put to the outside cover of air cock, and the air cock has the function of check valve, can fill gas to the air chamber from the outside, and when not having external force, the air chamber can be sealed to the air cock for the air chamber maintains the pressure of settlement. The inner wall of the opening of the tank body is a conical surface, a clamping edge 19 is arranged on the inner wall of the opening of the tank body, an inner conical surface 17 is formed on the inner side of the clamping edge, an annular groove 18 is formed on the outer side of the clamping edge, a clamping groove at the opening of the air bag is matched with the clamping edge, and an annular edge at the opening of the air bag is matched with the annular groove. The position of the tank body opening corresponding to the ring groove is a thickened part 3, and the thickness of the thickened part is greater than that of the rest parts of the tank body. The turning position of thickening portion is provided with diagonal rib 4, and the diagonal rib is central symmetry arrangement for the axis of the jar body. The inner wall of the thickened part of the tank body extends axially to form a flange 20, the radial outer side of the flange forms a trapezoidal concave part, and both sides of the trapezoidal concave part are conical surfaces.
As shown in fig. 6 and 7 and 8, the can lid is circular, the end surface of the can lid facing the inside of the can body is gradually arched from the outer periphery to the middle, and water holes 9 penetrating through the two end surfaces of the can lid are provided in the middle of the can lid. The end face is provided with a raised convex ring 29 which is concentric with the water hole, the convex ring is radially provided with two grooves 28, and the two grooves are spaced by 180 degrees. The periphery of the tank cover is a conical surface which is matched with the conical surface on the outer side of the trapezoidal concave part of the opening of the tank body. The periphery of the end face of the tank cover is axially convex, the inner side of the axially convex is an inner conical surface, and the inner conical surface is matched with the conical surface of the inner side of the trapezoidal concave part of the opening of the tank body. The middle part of the other end surface of the tank cover is provided with an inner column 31, and a water hole penetrates through the inner column. The middle part of the other end face of the tank cover is also embedded with a threaded connecting column 30, the threaded connecting column and the tank cover are integrally formed, and the threaded connecting column is sleeved outside the inner column. The threaded connecting column is divided into two sections, the middle of the threaded connecting column is divided by a rectangular ring 33, one section is a threaded section, the other section is a parallel sawtooth section 34, the parallel sawtooth section is embedded into the tank cover, and the threaded section is exposed out of the tank cover. A circle of sinking grooves 32 surrounding the threaded connecting columns are formed in the outer surface of the tank cover, and sealing rubber rings 8 are arranged in the sinking grooves. The outer part of the threaded connecting column is sleeved with a dust cover 7, and dust and the like can be prevented from entering the threaded connecting column through the dust cover. Be provided with many radial strengthening ribs 6 on the cover surface, the high difference of strengthening rib, from being close to central point to the outermost end, the height of strengthening rib reduces gradually.
The air bag is arranged in the tank body, the side wall of the opening of the air bag is connected with the side wall of the opening of the tank body, the clamping groove of the opening end of the air bag is matched with the clamping edge of the opening of the tank body, and the ring edge of the opening of the air bag is matched with the ring groove of the opening of the tank body. Set up clamping ring 11 on the axial terminal surface on gasbag open-ended ring limit, the clamping ring is in between gasbag open end and the cover, and cover and jar body welded seal are fixed, and the cover compresses tightly the clamping ring, and the clamping ring compresses tightly the gasbag to make air chamber and hydroecium mutual independence.
As shown in fig. 5, the pressing ring is annular, one axial end is an extrusion flat end, a sealing ring mounting groove 25 is formed on the inner side of the extrusion flat end, the other axial end is a concave clamping portion 21, the clamping portion is matched with the opening end portion of the airbag, an inner clamping edge is formed radially inside the clamping portion, an outer clamping edge is formed radially outside the clamping portion, and a sealing ring 10 is clamped in the sealing ring mounting groove to form extrusion sealing with the can cover. The periphery of the pressure ring is provided with a radially protruding stop block 26, which is rectangular. The limiting blocks on the periphery of the pressure ring are three in total, the three limiting blocks are symmetrical relative to the center of the pressure ring, and the three limiting blocks are spaced by 120 degrees. The inner side surface of the flange of the inner wall of the opening of the tank body is provided with an inwards concave limiting groove, the shape and size of the limiting groove are matched with those of the limiting block, the number of the limiting grooves is three, and the three limiting grooves are spaced by 120 degrees. When the pressing ring is matched with the tank body, the limiting block is clamped into the limiting groove, so that the pressing ring can be prevented from rotating relative to the tank body, and the air bag can be prevented from rotating relative to the tank body.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (9)
1. A pressure tank for a water pump is characterized by comprising a tank body (1) made of plastics, a tank cover (5) made of plastics and an air bag (12) positioned in the tank body, wherein the tank body is provided with an opening, and the tank cover and the opening of the tank body are welded, fixed and sealed; the air bag is provided with an opening, the side wall of the opening of the air bag is fixedly connected with the side wall in the opening of the tank body and divides the tank body into an air chamber (14) and a water chamber (13); the bottom of the tank body is provided with an air hole (16) which is communicated with the air chamber, and the middle part of the tank cover is provided with a water hole (9) which is communicated with the water chamber.
2. The pressure tank for the water pump as claimed in claim 1, wherein the tank body has a cylindrical structure, and the diameter of the inside of the tank body gradually increases from the bottom of the tank body to the opening of the tank body; the air bag opening is provided with a press ring (11), the cover presses the press ring, and the press ring fixes the air bag opening at the tank opening.
3. The pressure tank for the water pump as claimed in claim 2, wherein the pressure ring is annular, one axial end is an extrusion flat end, a sealing ring mounting groove (25) is formed inside the extrusion flat end, the other axial end is an inward concave clamping portion (21), the clamping portion is matched with the opening end of the air bag, an inner clamping edge is formed radially inside the clamping portion, and an outer clamping edge is formed radially outside the clamping portion; the sealing ring is clamped in the sealing ring mounting groove to form extrusion sealing with the tank cover.
4. A pressure tank for a water pump according to claim 1, 2 or 3, characterized in that the inner wall of the opening of the tank body is provided with a clamping edge (19), the outer side of the clamping edge is provided with a ring groove (18), the opening of the air bag is provided with an outward turning ring edge (24) and forms a clamping groove (22), the clamping groove is used for being matched with the clamping edge, and the ring edge is used for being matched with the ring groove.
5. The pressure tank for the water pump according to claim 4, wherein the position of the opening of the tank body corresponding to the ring groove is a thickened part (3), and the thickness of the thickened part is larger than that of the rest part of the tank body; the inner wall of the thickened part of the tank body extends axially to form a flange (20), the radial outer side of the flange forms a trapezoidal concave part, and both sides of the trapezoidal concave part are conical surfaces.
6. The pressure tank for a water pump according to claim 5, wherein the tank cover is circular, and the outer peripheral surface of the tank cover is a tapered surface that fits the tapered surface on the outside of the trapezoidal recess at the opening of the tank body; the middle part of the tank cover is provided with water holes which run through two end faces of the tank cover, the middle part of the tank cover is also embedded with a threaded connecting column (30), and the threaded connecting column and the tank cover are integrally formed.
7. A pressure tank for a water pump according to claim 6, characterized in that the end surface of the tank cover facing the inside of the tank body is gradually arched from the outer periphery to the middle, the end surface is provided with a convex ring (29) which is convex and concentric with the water hole, the convex ring is radially provided with two grooves (28), and the two grooves are spaced by 180 degrees.
8. A pressure tank for a water pump according to claim 6, characterized in that the threaded connection column is divided into two sections, the middle section is divided by a rectangular ring (33), one section is a threaded section, the other section is a parallel sawtooth section (34), the parallel sawtooth section is embedded in the tank cover, and the threaded section is exposed out of the tank cover.
9. A pressure tank for a water pump according to claim 1, characterized in that an air tap (15) is arranged at the air hole at the bottom of the tank body, and an enclosure (2) is sleeved outside the air tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121428505.XU CN215486431U (en) | 2021-06-25 | 2021-06-25 | Pressure tank for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121428505.XU CN215486431U (en) | 2021-06-25 | 2021-06-25 | Pressure tank for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215486431U true CN215486431U (en) | 2022-01-11 |
Family
ID=79722118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121428505.XU Active CN215486431U (en) | 2021-06-25 | 2021-06-25 | Pressure tank for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215486431U (en) |
-
2021
- 2021-06-25 CN CN202121428505.XU patent/CN215486431U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220614 Address after: 311404 No. 78 Beishan Road Branch Road, Xindeng Town, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Yizheng water treatment equipment Co.,Ltd. Address before: 311201 Shushan Jie Dao Huang Jia Zhang Cun, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU BRIGHT ELECTRICAL APPLIANCE CO.,LTD. |
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| TR01 | Transfer of patent right |