CN110186192B - Connection structure for improving assembly efficiency and water heater - Google Patents
Connection structure for improving assembly efficiency and water heater Download PDFInfo
- Publication number
- CN110186192B CN110186192B CN201910441032.8A CN201910441032A CN110186192B CN 110186192 B CN110186192 B CN 110186192B CN 201910441032 A CN201910441032 A CN 201910441032A CN 110186192 B CN110186192 B CN 110186192B
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- Prior art keywords
- mounting plate
- elastic mounting
- adapter
- water heater
- water tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
- F16L3/237—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for two pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
Abstract
The invention discloses a connecting structure for improving assembly efficiency and a water heater, wherein the connecting structure comprises: the middle part of the elastic mounting plate is positioned on the clamping seat, two ends of the elastic mounting plate are respectively provided with a connecting sleeve, one end of each connecting sleeve is open, an internal thread is arranged on the inner wall of the opening, the other end of each connecting sleeve is provided with an end plate, each end plate is provided with a through hole which is sleeved on the corresponding elastic mounting plate, the end part of each elastic mounting plate is provided with a first blocking part which is positioned in the opening, and the size of each first blocking part is larger than that of each through hole. The invention has the advantages of high assembly efficiency, stable connection, simple structure and the like.
Description
Technical Field
The invention relates to the technical field of connecting structures, in particular to a connecting structure capable of effectively improving assembling efficiency and a water heater.
Background
At present, the water tank of current heat pump water heater comprises water tank inner bag, foaming heat preservation layer and microchannel heat exchanger etc. usually, and the microchannel heat exchanger adopts many flat pipes and two pressure manifold to constitute usually, and flat pipe is rectangular form and parallel arrangement, two pressure manifold parallel arrangement, and the one end of all flat pipes is connected on a pressure manifold, and the other end of all flat pipes is connected on another pressure manifold. The micro-channel heat exchanger heats water in the water tank by being fixed on the surface of the water tank liner in a curling mode, a switching block is usually arranged on each of the two collecting pipes, an installation plate is fixed on the surface of the water tank liner through bolts, and then the installation plate is connected with the switching blocks on the two sides through the bolts, so that the micro-channel heat exchanger is assembled on the water tank liner.
During specific assembly, the mounting plate needs to be fixed on the surface of the inner container by using screws, then the fixing bolt of the adapter block on one side is tightened, and finally the fixing bolt of the adapter block on the other side is tightened. Due to the influence of the micro-channel heat exchanger processing technology and the product structure, operators are difficult to accurately align bolt hole sites, even need to forcibly assemble by means of external force, bolts can be smoothly extruded into bolt hole sites of the connecting plates, and the assembly efficiency is low. The bolts are often tightened and broken for many times, and even the adapter block of the microchannel heat exchanger can be scratched. Meanwhile, the mounting plate is a rigid piece, the bolt is connected without elasticity, the bolt bears stretching force and shearing force for a long time after the micro-channel heat exchanger is assembled, the risk of thread failure exists, sufficient pre-tightening force cannot be provided for the micro-channel heat exchanger, the micro-channel heat exchanger is poorly attached to the outer wall of the inner container, and the heat exchange efficiency of the water heater is reduced.
Therefore, how to design a connection structure and a water heater capable of effectively improving the assembly efficiency is an urgent technical problem to be solved in the industry.
Disclosure of Invention
In order to overcome the defects of low assembly efficiency and short service life of the existing bolt connection, the invention provides a connection structure for improving the assembly efficiency and a water heater.
The technical scheme adopted by the invention is that a connecting structure for improving the assembly efficiency is designed, and the connecting structure comprises: the clamping device comprises a clamping seat, an elastic mounting plate and a pair of connecting sleeves, wherein the middle part of the elastic mounting plate is positioned on the clamping seat, and the two ends of the elastic mounting plate are respectively provided with one connecting sleeve.
Preferably, the connecting sleeve is movably arranged at the end part of the elastic mounting plate.
Preferably, one end of the connecting sleeve is open, an internal thread is arranged on the inner wall of the opening, an end plate is arranged at the other end of the connecting sleeve, a through hole sleeved on the elastic mounting plate is formed in the end of the elastic mounting plate, a first blocking portion located in the opening is arranged at the end of the elastic mounting plate, and the size of the first blocking portion is larger than that of the through hole.
Preferably, the end part of the elastic mounting plate is further provided with a second blocking part positioned outside the connecting sleeve, the first blocking part and the second blocking part form an annular groove in the end part of the elastic mounting plate in a surrounding manner, and the through hole is movably sleeved on the annular groove.
Preferably, the middle part of the elastic mounting plate is provided with a positioning block, and the clamping seat is provided with a containing groove for installing the positioning block.
Preferably, the side wall of the accommodating groove is provided with at least one slot, the positioning block is internally provided with an installation cavity, the installation cavity is internally provided with at least one buckle, the buckle is provided with a convex tongue positioned outside the accommodating groove and a lock tongue inserted into the slot, the installation cavity is also internally provided with a spring abutted against the buckle, and the lock tongue can be retracted into the positioning block by pressing the convex tongue.
Preferably, when the positioning block is placed in the accommodating groove to the limit position, the tongue is loosened to enable the lock tongue to be inserted into the inserting groove.
Preferably, be equipped with a pair of buckle in the installation cavity, the spring butt is between this pair of buckle, and the spring bolt on this pair of buckle stretches out towards the direction that carries on the back mutually, is equipped with on the lateral wall of holding tank with spring bolt assorted slot.
Preferably, the accommodating groove is formed in one surface of the clamping seat, and the other surface, opposite to the surface where the accommodating groove is formed, of the clamping seat is an installation surface; the clamping seat is fixed on the outer wall of the cylindrical installation object, and the installation surface is an arc-shaped surface attached to the outer wall of the cylindrical installation object.
The invention also discloses a water heater with the connecting structure, which comprises: the micro-channel heat exchanger is provided with two collecting pipes which are parallel to the axis of the water tank liner; the adapter is installed on the collecting pipes, the connecting structure is located between the two collecting pipes, the clamping seat is fixed on the outer wall of the water tank liner, and the connecting sleeve is fixedly connected with the adapter on the corresponding side of the connecting sleeve so as to tension the two collecting pipes to enable the micro-channel heat exchanger to be coated on the outer wall of the water tank liner.
Preferably, the adapter is provided with an arc-shaped clamping part sleeved and fixed on the collecting pipe, and the adapter is further provided with an adapter in threaded fit with the connecting sleeve.
Preferably, the inner diameter of the arc-shaped clamping part is smaller than the diameter of the collecting main.
Compared with the prior art, the invention has the following beneficial effects:
1. the flexible connecting structure of the elastic mounting plate and the connecting sleeve is adopted to replace the original rigid structure of the mounting plate and the bolt, so that the processing errors of the length of the micro-channel flat tube and the angle direction of the adapter block can be compensated, the assembly precision of the micro-channel heat exchanger is reduced, and the assembly efficiency is improved;
2. the connecting sleeve is provided with internal threads, the adapter with threads is arranged on the current collector of the micro-channel heat exchanger, and the thread matching depth of the connecting sleeve and the adapter is adjusted, so that the elastic mounting plate is subjected to enough elastic deformation, the water heater is ensured to provide enough pretightening force in the long-term operation process, the micro-channel heat exchanger is tightly attached to the lake surface of the outer wall of the water tank liner, and the heat exchange efficiency of the water tank is improved;
3. the middle part of elastic mounting panel is equipped with the locating piece, and the locating piece is fixed a position through the buckle with the holding tank, makes the protrusion and the withdrawal of spring atress deformation control buckle through external force extrusion effect, and then control locating piece card income or break away from the holding tank, realizes the whole rapid Assembly with the cassette of elastic mounting panel, connects reliably and convenient operation.
Drawings
The invention is described in detail below with reference to examples and figures, in which:
FIG. 1 is a schematic view of the internal structure of the connection structure of the present invention installed on a water heater;
FIG. 2 is a schematic cross-sectional view of a connection structure according to the present invention;
FIG. 3 is a perspective view of the connection structure of the present invention;
FIG. 4 is a cross-sectional view of the resilient mounting plate of the present invention;
FIG. 5 is a perspective view of the resilient mounting plate of the present invention;
FIG. 6 is a schematic cross-sectional view of a cartridge according to the present invention;
FIG. 7 is a schematic perspective view of a cartridge according to the present invention;
FIG. 8 is a perspective view of the buckle of the present invention;
fig. 9 is a schematic sectional view of a connecting sleeve according to the present invention;
FIG. 10 is a perspective view of the adapter of the present invention;
FIG. 11 is a schematic cross-sectional view of the resilient mounting plate of the present invention shown without being installed in the cartridge;
FIG. 12 is a schematic cross-sectional view of the resilient mounting plate of the present invention inserted into the cartridge;
fig. 13 is a schematic cross-sectional view of the elastic mounting plate and the clamping seat in clamping connection.
Detailed Description
As shown in fig. 1 to 3, the present invention proposes a connection structure 5 comprising: the clamping seat 51, elastic mounting plate 52 and a pair of adapter sleeve 55, the middle part of elastic mounting plate 52 is fixed a position on clamping seat 51, the both ends of elastic mounting plate 52 respectively are equipped with a adapter sleeve 55, elastic mounting plate 52 is elongated and thin-walled, elastic mounting plate 52 possesses good elasticity, can adopt materials such as metal to make, elastic mounting plate 52 can be out of shape at length direction or for the certain angle of rotation bending of clamping seat 51, compensate microchannel flat tube machining error, reduce the requirement to microchannel heat exchanger 2 assembly precision, realize the high-speed joint of adapter sleeve 55 and adapter 41, cancel the counterpoint action of bolt among the conventional art, greatly improve assembly efficiency.
As shown in fig. 2 to 8, a positioning block 521 is disposed in the middle of the elastic mounting plate 52, a receiving groove 511 for receiving the positioning block 521 is disposed on the cassette 51, the receiving groove 511 has a size that is in clearance fit with the cassette 51, at least one slot 512 is disposed on a sidewall of the receiving groove 511, a mounting cavity 522 is disposed inside the positioning block 521, at least one latch 53 is disposed in the mounting cavity 522, the latch 53 has a tongue 531 outside the receiving groove 511 and a latch 532 inserted into the slot 512, a spring 54 abutting against the latch 53 is further disposed in the mounting cavity 522, a spring slot for receiving an end of the spring 54 is disposed on the latch 53, the latch 532 can be retracted into the positioning block 521 by pressing the tongue 531, the positioning block 521 is pulled out of the receiving groove 511, the positioning block 521 is placed into the receiving groove 511 by pressing the tongue 531, the latch 532 is inserted into the slot 512 under the restoring force of the spring 54 by releasing the tongue, the positioning block 521 is positioned in the receiving groove 511. It should be noted that, a notch for installing the buckle 53 and the spring 54 is formed in one side of the positioning block 521, the notch is provided with a cover plate, the cover plate is welded on the notch after the buckle 53 and the spring 54 are installed, so as to cover the notch to complete installation, the positioning block can be set into two parts during actual design, the buckle 53 and the spring 54 are fixed together after installation, and naturally, the installation of the buckle 53 and the spring 54 can also be completed in other manners.
In the preferred embodiment, a pair of catches 53 are provided in the mounting chamber 522, the spring 54 abuts between the pair of catches 53, the locking tongues 532 on the pair of buckles 53 extend out in opposite directions, the side walls of the accommodating grooves 511 are provided with inserting grooves 512 matched with the locking tongues 532, when assembling, external force in opposite horizontal directions is applied to the locking tongues 531 of the two buckles 53, the spring 54 is extruded and deformed, when the buckle 53 moves horizontally to the lock tongue 532 and retracts into the positioning block 521, the positioning block 521 is placed into the receiving groove 511, when the buckle 53 is put into the limit position of the receiving slot 511 downwards, the bottom surface of the buckle 53 is pressed against the bottom surface of the receiving slot 511, the external force is eliminated, the spring 54 recovers the elastic deformation, the two buckles 53 move to the left and the right respectively, the bolt extends out of the positioning block 521 to be inserted into the slot 512, the locking tongue 532 and the slot 512 are tightly engaged, so that the elastic mounting plate 52 is reliably connected and positioned with the card holder 51. Preferably, the two locking tongues 532 are in clearance fit with the upper and lower walls of the slot 512, and the fit clearance is preferably set to 0.05-0.1mm, so as to avoid the rotation or distortion of the buckle 53 in the vertical plane when the elastic mounting plate 52 is tensioned by the elastic force. Compared with the existing mounting plate screw fixing mode, the connecting structure of the invention has simpler operation and can realize the quick assembly of the elastic mounting plate 52 and the clamping seat 51.
Further, holding tank 511 is arranged on one side of cassette 51, the another side opposite to the holding tank 511 on cassette 51 is the installation face, cassette 51 is fixed on the outer wall of cylindrical installation thing, the installation face is the arcwall face of the outer wall of the cylindrical installation thing of laminating, earlier during the assembly with cassette 51 welded fastening on the outer wall of the cylindrical installation thing, put into cassette 51 with locating piece 521 again and make spring bolt 532 insert slot 512, can realize the effective fixed of whole connection structure and cylindrical installation thing. Of course, the side of the resilient mounting plate 52 facing the outer wall of the cylindrical mounting may also be provided with an arcuate surface.
As shown in fig. 2, 3 and 9, the two ends of the elastic mounting plate 52 are identical in structure, and only one end thereof will be described in detail below. In the preferred embodiment, the connecting sleeve 55 is a nut, and the connecting sleeve 55 is movably mounted on the end of the elastic mounting plate 52. One end of the connecting sleeve 55 is open, an internal thread is arranged on the inner wall of the open, in order to prevent the connecting sleeve 55 from loosening, a common nut can be replaced by a self-locking nut, the anti-loosening and anti-vibration capabilities of the connecting sleeve 55 are enhanced, an end plate is arranged at the other end of the connecting sleeve 55, the end plate is provided with a through hole sleeved on the elastic mounting plate 52, a first blocking portion 523 located in the open is arranged at the end of the elastic mounting plate 52, and the size of the first blocking portion 523 is larger than that of the through hole so as to prevent the connecting. The end of the elastic mounting plate 52 is further provided with a second blocking portion 524 located between the first blocking portion 523 and the positioning block 521 to limit the inward movement distance of the connecting sleeve 55, the first blocking portion 523 and the second blocking portion 524 are arranged at intervals, an annular groove is defined by the end of the elastic mounting plate 52, the diameter of the through hole is larger than that of the annular groove, and the through hole is movably sleeved on the annular groove to limit the movement range of the connecting sleeve 55 in the annular groove. In order to make the assembly more convenient, the wall thickness t of the through hole is as thin as possible, so that the connecting sleeve 55 can rotate at a larger angle, the machining error is effectively compensated, and the assembly efficiency is improved. It should be noted that the first blocking portion 523 may be fixed to the end of the elastic mounting plate 52 by welding or screwing to facilitate the connection sleeve to be sleeved in the annular groove, and of course, the first blocking portion 523 may also be fixed to the elastic mounting plate 52 by other manners.
As shown in fig. 1 and 2, the invention also discloses a water heater with the above connection structure, comprising: water tank inner bag 1, shell middle section, microchannel heat exchanger 2 and foaming heat preservation, microchannel heat exchanger 2 is equipped with two pressure manifold 3 parallel with 1 axis of water tank inner bag, has arranged many horizontal parallel arrangement's flat pipe between pressure manifold 3, has the interval between two adjacent flat pipes. The water tank inner container 1 is vertically placed, the micro-channel heat exchanger 2 is assembled at the middle lower part of the water tank inner container 1, the water tank inner container 1 is a cylindrical installation object in the above, and the clamping seat 51 is welded and fixed on the outer wall of the water tank inner container 1. Install adapter 4 on pressure manifold 3 for use with connection structure 5 cooperation when assembling microchannel heat exchanger 2, connection structure 5 is located between two pressure manifold 3, and cassette 51 is fixed on water tank inner bag 1's outer wall, adapter 4 fixed connection of adapter 55 rather than corresponding side to taut two pressure manifold 3 make microchannel heat exchanger 2 cladding on water tank inner bag 1's outer wall.
As shown in fig. 10, the adapter 4 is provided with an arc clamping portion 42 fixed on the header pipe 3 in a sleeved manner, the adapter 4 is further provided with an adapter 41 in threaded fit with the connecting sleeve, the inner diameter of the arc clamping portion 42 is smaller than the diameter of the header pipe, the diameter of the header pipe 3 is R, and the inner diameter of the arc clamping portion 42 is preferably set to be R-0.15-R-0.25 mm, so that the adapter 4 is convenient to be in interference fit with the header pipe 3 during assembly and positioning, and the adapter 4 is prevented from being loosened during conveying in each process during processing of the microchannel heat exchanger 2, and the positioning size of the adapter 4 relative to the microchannel heat exchanger 2 is changed.
As shown in fig. 11 to 13, during assembly, the connecting sleeve 55 is manually adjusted to align with the axis of the adapter 41, the connecting sleeves 55 on the two sides of the elastic mounting plate are rotated, the connecting sleeves 55 are screwed into the threads of the adapter 41 sleeved on the collecting pipe 3, the elastic mounting plate 52 can deform in the length direction or rotate relative to the installation angle direction of the adapter 41, sufficient pre-tightening force is provided, the micro-channel heat exchangers 2 on the two sides of the elastic mounting plate 52 are tightened and attached to the inner tank 1, and the heat exchange efficiency of the water tank is improved. The mutually-meshed elastic mounting plate 52 and the clamping seat 51 effectively prevent the elastic mounting plate 52 from axially moving in the water tank liner 1, the elastic mounting plate 52 tensions the micro-channel heat exchanger 2 to be attached to the water tank liner 1, and the micro-channel heat exchanger 2 is effectively prevented from rotating in the radial direction of the water tank liner 1. The connecting structure has high strength and good stability, compensates the processing error of the micro-channel heat exchanger 2, reduces the assembly precision of the micro-channel heat exchanger 2, and realizes the quick connection of the connecting sleeve 55 and the adapter 41, thereby improving the assembly efficiency of the micro-channel heat exchanger 2, reducing the quality hidden trouble that the edge of the collecting pipe 3 is scraped and the bolt is broken in the production process, effectively increasing the locking force between the connecting sleeve 55 and the adapter 41 when the connecting sleeve 55 adopts the self-locking nut, improving the connection reliability of the connecting sleeve 55 and the adapter 41, and further improving the connection stability of the micro-channel heat exchanger 2 on the surface of the water tank liner 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A water heater, characterized by comprising: the connecting structure, the water tank liner and the micro-channel heat exchanger are arranged on the water tank;
the connection structure includes: the middle part of the elastic mounting plate is positioned on the clamping seat, two ends of the elastic mounting plate are respectively provided with one connecting sleeve, and the connecting sleeves are movably arranged at the end parts of the elastic mounting plate;
the micro-channel heat exchanger is provided with two collecting pipes parallel to the axis of the water tank liner; install the adapter on the pressure manifold, connection structure is located between two pressure manifolds, the cassette is fixed on the outer wall of water tank inner bag, rotate the adapter sleeve of elastic mounting panel both sides, cup joint the adapter sleeve screw in the screw thread of the adapter on the pressure manifold, utilize elastic mounting panel can be in length direction deformation or for the rotation of adapter installation angle direction, provide sufficient pretightning force, in order taut two pressure manifolds make the cladding of microchannel heat exchanger is in on the outer wall of water tank inner bag.
2. The water heater according to claim 1, wherein one end of the connecting sleeve is open, an internal thread is provided on the inner wall of the open, an end plate is provided at the other end of the connecting sleeve, the end plate is provided with a through hole sleeved on the elastic mounting plate, the end of the elastic mounting plate is provided with a first blocking portion located in the open, and the size of the first blocking portion is larger than that of the through hole.
3. The water heater according to claim 2, wherein a second blocking portion is further disposed at an end portion of the elastic mounting plate and located outside the connection sleeve, an annular groove is defined by the first blocking portion and the second blocking portion at the end portion of the elastic mounting plate, and the through hole is movably sleeved on the annular groove.
4. The water heater as claimed in claim 1, wherein a positioning block is disposed in the middle of the elastic mounting plate, and a receiving groove for mounting the positioning block is disposed on the clamping seat.
5. The water heater as claimed in claim 4, wherein at least one slot is formed on a sidewall of the receiving groove, a mounting cavity is formed inside the positioning block, at least one buckle is formed in the mounting cavity, the buckle has a tongue located outside the receiving groove and a latch inserted into the slot, a spring abutting against the buckle is further formed in the mounting cavity, and the latch can be retracted into the positioning block by pressing the tongue; when the positioning block is placed into the accommodating groove to the limit position, the tongue can be loosened to enable the lock tongue to be inserted into the inserting groove.
6. The water heater as claimed in claim 5, wherein a pair of fasteners are provided in the mounting cavity, the spring abuts between the pair of fasteners, the locking tongues of the pair of fasteners extend in opposite directions, and the side wall of the accommodating groove is provided with a slot matched with the locking tongues.
7. The water heater as claimed in claim 5, wherein the accommodating groove is formed in one surface of the clamping seat, and the other surface of the clamping seat opposite to the surface where the accommodating groove is formed is an installation surface; the clamping seat is fixed on the outer wall of the cylindrical installation object, and the installation surface is an arc-shaped surface attached to the outer wall of the cylindrical installation object.
8. The water heater as claimed in claim 1, wherein said adapter is provided with an arc-shaped clamping portion sleeved and fixed on said collecting pipe, and said adapter is further provided with an adapter which is in threaded fit with said connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910441032.8A CN110186192B (en) | 2019-05-24 | 2019-05-24 | Connection structure for improving assembly efficiency and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910441032.8A CN110186192B (en) | 2019-05-24 | 2019-05-24 | Connection structure for improving assembly efficiency and water heater |
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| CN110186192A CN110186192A (en) | 2019-08-30 |
| CN110186192B true CN110186192B (en) | 2020-11-24 |
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| CN201910441032.8A Active CN110186192B (en) | 2019-05-24 | 2019-05-24 | Connection structure for improving assembly efficiency and water heater |
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| CN110186192A (en) | 2019-08-30 |
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