CN116025653A - Rubber sheath for protecting small elbow of evaporator and air conditioner - Google Patents

Abstract

The invention discloses a rubber sheath for protecting a small elbow of an evaporator and an air conditioner, comprising a sheath body sleeved on the small elbow of a copper pipe, wherein one end of the sheath body is provided with an inwards concave accommodating cavity, a U-shaped circular groove is arranged along the inner edge of the accommodating cavity, a limiting boss fixed with the sheath body is also arranged in the accommodating cavity, and the sheath body is made of rubber. According to the rubber sheath for protecting the small elbow of the evaporator and the air conditioner, the sheath is prevented from loosening through the limit of the internal limit boss, and meanwhile, the rubber material can play a role of buffering, so that the small elbow of the copper pipe is prevented from being shrunken, the air conditioner performance is prevented from being influenced, and noise generation is reduced.

Description

Rubber sheath for protecting small elbow of evaporator and air conditioner

Technical Field

The invention relates to the technical field of air conditioner pipeline jackets, in particular to a rubber jacket for protecting small elbows of an evaporator and an air conditioner.

Background

The two evaporators are core components of the air conditioner, and comprise an evaporator and a condenser, wherein the evaporator is used for an indoor unit, the condenser is used for an outdoor unit, the two evaporators are composed of copper pipes and fins, the copper pipes are required to form a plurality of refrigerant flow paths, heat exchange efficiency is guaranteed, the copper pipes are softer and easy to bend due to the material characteristics of the copper, when a certain force is applied to the outside, the hollow copper pipes can be sunken and are extremely easy to collapse after being extruded by external force, especially at a small elbow, if the hollow copper pipes are contacted with other components, a certain amount of load can be born in the operation process of the air conditioner, so that the pipeline is sunken, and the performance and noise of the whole air conditioner are influenced.

In the prior art, the copper pipe only needs to be inserted into the elbow sheath, and when the elbow sheath is used for a long time, the elbow sheath can be separated from the copper pipe, so that the protection of the copper pipe elbow is invalid, the protection effect is poor, and the problem that the copper pipe elbow is crashed is solved.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a rubber jacket for protecting a small elbow of an evaporator and an air conditioner.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a rubber sheath for protecting little elbow of evaporimeter, locates the sheath body on the little elbow of copper pipe including the cover, the one end of sheath body has the inside sunken chamber that holds, follows hold the intracavity edge and be provided with U type ring groove, hold the intracavity still be provided with the fixed spacing boss of sheath body, the sheath body adopts rubber to make.

As a further improvement of the invention: the U-shaped annular groove is sleeved with the two ends of the small copper pipe elbow, and the two ends of the small copper pipe elbow are provided with the containing parts in a flaring mode.

As a further improvement of the invention: the sheath body is provided with inclined plane diapire for having inwards sunken accommodation chamber's the other end, inclined plane diapire is to sheath body both sides slope symmetry.

As a further improvement of the invention: the limiting boss is in a slope shape, and the limiting boss is oppositely arranged.

As a further improvement of the invention: the sheath body is made of soft rubber.

As a further improvement of the invention: the sheath body is made of nitrile rubber, and the Shore A hardness is 68-78.

As a further improvement of the invention: the limiting boss is long platy, the limiting boss is provided with stiff end, flexible structure and expansion end, stiff end and expansion end joint are equipped with the face of rolling over, flexible structure sets up in the upside of rolling over, the expansion end is connected with the stiff end through flexible structure to make the expansion end can flexible structure revolute to the holding portion inside.

As a further improvement of the invention: the limiting bosses are arranged in a staggered mode.

As a further improvement of the invention: the limiting boss is made of hard plastic.

An air conditioner comprising a rubber boot for protecting a small elbow of an evaporator as described in any one of the above.

Compared with the prior art, the invention has the beneficial effects that:

the invention designs the rubber sheath for protecting the small elbow of the evaporator from being bumped and shrunken, the sheath is ensured not to loose by the limit of the internal limit boss, and meanwhile, the rubber material can play a role of buffering, so that the small elbow of the copper pipe is protected from being bumped and shrunken, the air conditioner performance is prevented from being influenced, and the noise is reduced.

Drawings

Fig. 1 is a front cross-sectional view of the structure of the present invention.

Fig. 2 is a top view of the structure of the present invention.

Fig. 3 is a front cross-sectional view of a structure according to a first embodiment of the present invention.

Fig. 4 is a side cross-sectional view of a structure according to a first embodiment of the present invention.

Fig. 5 is a side cross-sectional view of a structure according to a second embodiment of the present invention.

Reference numerals in the drawings: 1. the sheath body, 2, hold the chamber, 3, U-shaped ring groove, 4, spacing boss, 5, accommodation portion, 6, inclined plane diapire.

Detailed Description

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention will now be further described with reference to the accompanying drawings and examples: the utility model provides a rubber sheath for protecting little elbow of evaporimeter, locates the sheath body 1 on the little elbow of copper pipe including the cover, the one end of sheath body 1 has inwards sunken accommodation chamber 2, follows accommodation chamber 2 inward flange is provided with U type ring groove 3, still be provided with in the accommodation chamber 2 with the fixed spacing boss 4 of sheath body 1, sheath body 1 adopts rubber to make.

In the core components of the air conditioner, the evaporator is a key component affecting the performance of the whole machine, and a small elbow is needed to be welded at the bent pipe, so that the integrity of a pipeline is ensured. Copper pipes are adopted in the evaporator pipelines in the market at present, copper has excellent heat conductivity in terms of performance, copper materials are cheaper in a plurality of metal materials in terms of cost, and the copper pipes are the best choice as a refrigerant flow path. However, the copper pipe has the defects that the copper material is softer and is easy to bend, the stress at the bending part is larger, when a certain force is applied to the outside, the hollow copper pipe can be sunken to form a 'bumping and shrinking' phenomenon, the sunken copper pipe can form protruding points inside, the refrigerant can impact with the protruding points for a long time in the high-speed flowing process, the flow speed of the refrigerant can be reduced, and meanwhile, the reflux is formed to reduce the performance of the whole machine; meanwhile, the protruding points can generate excessive abrasion under the impact of long-time coolant flow, the thickness of the inner wall is reduced, leakage is easy to occur, and serious potential safety hazards and quality hazards are caused.

Because the small elbow is arc-shaped and hollow cylinder, the inside of the sheath body 1 is designed into a U-shaped circular groove 3 according to the size of the small elbow. Because the unavoidable vibration that can exist of evaporimeter in the operation in-process, the sheath can the slippage probably, consequently two spacing bosss 4 of middle part design of holding chamber 2 in sheath body 1 inside, under the vibratory action, little elbow can be blocked by spacing boss 4, can not produce relative motion to ensure that the sheath can be stably fixed on the return bend.

Preferably, the U-shaped circular groove 3 is sleeved with the two ends of the small copper pipe elbow, and the two ends of the small copper pipe elbow are provided with the containing parts 5 in a flaring mode. Rounded corners are added to the edges of openings at two ends of the U-shaped circular groove 3 so that the copper pipe can be clamped into the accommodating cavity 2 more smoothly, and the copper pipe is prevented from being cut by the rounded corners.

Preferably, the sheath body 1 is provided with a beveled bottom wall 6 at the other end opposite to the accommodating cavity 2 with inward recess, and the beveled bottom wall 6 is obliquely symmetrical to both sides of the sheath body 1.

Preferably, the limiting boss 4 is in a slope shape, and the limiting boss 4 is oppositely arranged.

Preferably, the sheath body 1 is made of soft rubber.

Preferably, the sheath body 1 is made of nitrile rubber, and the Shore A hardness is 68-78.

Preferably, the limiting boss 4 is in a long plate shape, the limiting boss 4 is provided with a fixed end, a flexible structure and a movable end, the fixed end and the movable end are connected with each other to form a folded surface, the flexible structure is arranged on the upper side of the folded surface, and the movable end is connected with the fixed end through the flexible structure, so that the movable end rotates towards the inside of the accommodating part 5 in the flexible structure.

Preferably, the limit boss 4 is arranged in a staggered manner.

Preferably, the limit boss 4 is made of hard plastic.

As another technical scheme of the invention: an air conditioner comprising a rubber boot for protecting a small elbow of an evaporator as described in any one of the above.

Embodiment case one:

the application relates to a rubber sheath for protecting a small elbow of an evaporator. Mainly be under the operation of the evaporimeter of air conditioner, through emboliaing the rubber sheath in the little elbow department of evaporimeter copper pipe to the little elbow of protection copper pipe is not bumped flat, avoids air conditioner performance to receive and noise abatement generates, and be difficult for droing. For the convenience of describing this solution, it is emphasized that this particular embodiment is merely a part of this application.

The utility model provides a rubber sheath for protecting little elbow of evaporimeter, locates the sheath body 1 on the little elbow of copper pipe including the cover, the one end of sheath body 1 has inwards sunken accommodation chamber 2, follows accommodation chamber 2 inward flange is provided with U type ring groove 3, still be provided with in the accommodation chamber 2 with the fixed spacing boss 4 of sheath body 1, sheath body 1 adopts rubber to make. The purpose of the accommodating cavity 2 is to enable the accommodating cavity 2 to be sleeved at the small copper pipe elbow, the accommodating cavity 2 is in interference fit with the small copper pipe elbow, the circular ring channels of the U-shaped circular ring grooves 3 are larger than the positions surrounded by the two sides of the accommodating cavity 2, the small copper pipe elbow can be primarily clamped at the U-shaped circular ring grooves 3 without deforming the small copper pipe elbow, and meanwhile the small copper pipe elbow can be protected from being shrunken after being extruded by external force.

The U-shaped circular groove 3 is sleeved with the two ends of the small copper pipe elbow, and the two ends of the small copper pipe elbow are provided with the containing parts 5 in a flaring mode. The opening edges at two ends of the U-shaped circular groove 3 are added with round corners so that the copper pipe can be clamped into the accommodating cavity 2 more smoothly, the sharp corners are prevented from cutting the copper pipe, and because the small copper pipe elbow is usually composed of an elbow pipe and a straight pipe, the joint of the elbow pipe and the straight pipe is convenient for connecting the elbow pipe and the straight pipe, the mouth of the straight pipe is processed into a flaring shape, the diameter of the mouth of the straight pipe is larger than that of the elbow pipe, and the flaring of the openings at two ends of the U-shaped circular groove 3 is arranged so as to accommodate the flaring of the mouth of the straight pipe, so that the straight pipe with the flaring can be matched with a rubber sheath better.

The sheath body 1 is provided with an inclined plane bottom wall 6 relative to the other end of the accommodating cavity 2 with an inward recess, and the inclined plane bottom wall 6 is obliquely symmetrical to two sides of the sheath body 1. When the small copper pipe elbow is protected by the sheath body 1, the phenomenon of collision and collapse occurs at the elbow part of the small copper pipe elbow, and the two bevel bottom walls 6 are oppositely arranged at the sheath body 1, therefore, the rubber thickness between the two bevel bottom walls 6 cannot be too small, when the minimum thickness of the small copper pipe elbow is protected and the small copper pipe elbow is not in collision and collapse occurs, the inclination angle of the bevel bottom walls 6 is changed, the production materials for producing the sheath body 1 are reduced, the protection effect is also inconsistent, when the bevel center axis of any one bevel bottom wall 6 is intersected with the bevel center axis of the other bevel bottom wall 6, the intersection included angle is 90 degrees, the bevel symmetry axes of the two bevel bottom walls 6 also penetrate through the intersection points of the two center axes, therefore, when the intersection included angle is 90 degrees, the radian of the U-shaped circular ring groove 3 and the accommodating cavity 2 can be 90 degrees, and when the intersection included angle is 90 degrees, the sheath body 1 with the bevel bottom wall 6 is opposite to the rectangular sheath body 1, the protection effect of the small copper pipe elbow can be optimally protected, and the production materials can be cut off maximally, namely, when the production cost is reduced, the production cost can be reduced.

The limiting boss 4 is in a slope shape, and the limiting boss 4 is oppositely arranged. Two spacing bosss 4 have been designed to the below that holds chamber 2 in sheath body 1 inside, be the slope form, when adorning sheath body 1 on the return bend, the return bend top is first through one section slope, and receive the resistance, staff need make the return bend pass through the slope slightly with force this moment, fall in holding the inside U type ring groove 3 of chamber 2, under the vibratory action, the return bend can be blocked by the inclined plane at slope back, can not produce relative motion, thereby ensure that the sheath can be stably fixed on the return bend, the rubber sheath repeatedly usable of this kind of structure, only need pull down sheath body 1 from the little elbow of copper pipe.

In the material selection of the whole sheath, as two modes of refrigeration and heating exist in the operation of the air conditioner, the pipeline has cold and hot changes, the material of the sheath should be made of rubber material with stronger cold and hot impact resistance, the sheath is ensured to have no performance change at 0-100 ℃, and meanwhile, in order to prevent the bent pipe from being 'shrunken' by external force, the sheath should have certain elasticity and not easy to collapse; the evaporator can be in direct contact with the outside air in the running process, a plurality of impurities exist in the air, the sheath must have the characteristics of water resistance, oil resistance, acid resistance and alkali resistance, and then the material of the whole sheath is nitrile rubber with Shore hardness of 73+/-5 degrees.

Embodiment two:

the utility model provides a rubber sheath for protecting little elbow of evaporimeter, locates the sheath body 1 on the little elbow of copper pipe including the cover, the one end of sheath body 1 has inwards sunken accommodation chamber 2, follows accommodation chamber 2 inward flange is provided with U type ring groove 3, still be provided with in the accommodation chamber 2 with the fixed spacing boss 4 of sheath body 1, sheath body 1 adopts rubber to make. The purpose of the accommodating cavity 2 is to enable the accommodating cavity 2 to be sleeved at the small copper pipe elbow, the accommodating cavity 2 is in interference fit with the small copper pipe elbow, the circular ring channels of the U-shaped circular ring grooves 3 are larger than the positions surrounded by the two sides of the accommodating cavity 2, the small copper pipe elbow can be primarily clamped at the U-shaped circular ring grooves 3 without deforming the small copper pipe elbow, and meanwhile the small copper pipe elbow can be protected from being shrunken after being extruded by external force.

The U-shaped circular groove 3 is sleeved with the two ends of the small copper pipe elbow, and the two ends of the small copper pipe elbow are provided with the containing parts 5 in a flaring mode. Rounded corners are added to the edges of openings at two ends of the U-shaped circular groove 3 so that the copper pipe can be clamped into the accommodating cavity 2 more smoothly, and the copper pipe is prevented from being cut by the rounded corners. The opening edges at two ends of the U-shaped circular groove 3 are added with round corners so that the copper pipe can be clamped into the accommodating cavity 2 more smoothly, the sharp corners are prevented from cutting the copper pipe, and because the small copper pipe elbow is usually composed of an elbow pipe and a straight pipe, the joint of the elbow pipe and the straight pipe is convenient for connecting the elbow pipe and the straight pipe, the mouth of the straight pipe is processed into a flaring shape, the diameter of the mouth of the straight pipe is larger than that of the elbow pipe, and the flaring of the openings at two ends of the U-shaped circular groove 3 is arranged so as to accommodate the flaring of the mouth of the straight pipe, so that the straight pipe with the flaring can be matched with a rubber sheath better.

The sheath body 1 is provided with an inclined plane bottom wall 6 relative to the other end of the accommodating cavity 2 with an inward recess, and the inclined plane bottom wall 6 is obliquely symmetrical to two sides of the sheath body 1.

The limiting boss 4 is long platy, the limiting boss 4 is provided with stiff end, flexible structure and expansion end, stiff end and expansion end joint are equipped with the face of rolling over, flexible structure sets up in the upside of rolling over, the expansion end is connected with the stiff end through flexible structure to make the expansion end revolute to the holding portion 5 inside with flexible structure. In the material selection of the sheath body 1, as two modes of refrigeration and heating exist in the operation of an air conditioner, the pipeline has cold and hot changes, the material of the sheath body 1 should be made of rubber material with stronger cold and hot impact resistance, the sheath body 1 is ensured to have no performance change at 0-100 ℃, and meanwhile, in order to prevent the bent pipe from being 'shrunken' by external force, the sheath body 1 should have certain elasticity and not be easy to collapse; the evaporator can be in direct contact with external air in the operation process, a plurality of impurities exist in the air, the sheath body 1 must have the characteristics of water resistance, oil resistance, acid resistance and alkali resistance, then the material of the body is nitrile rubber, shore hardness is 73+/-5 degrees, and compared with the sheath body 1, the limit boss 4 is made of hard plastic, and under vibration, the bent pipe can be blocked by the limit boss 4 at the inner side, and the bent pipe cannot slide out of the sheath body 1. The rubber sheath of using this kind of structure is disposable consumptive material, two spacing bosss 4 have been designed to the below of holding chamber 2 in sheath body 1 inside, be long platy, spacing boss 4 dislocation set, when holding sheath body 1 on the return bend, the return bend top is at first through contacting spacing boss 4 that is close to holding chamber 2 open position, the return bend promotes the expansion end in the outside, the expansion end is to the inside upset of holding portion 5 with flexible structure, and get into U type ring groove 3 after the force application of the inboard spacing boss 4 of the force that the expansion end received in the outside promotes, the return bend promotes two expansion end upset promptly, fall in holding the inside U type ring groove 3 of chamber 2, under the vibratory action, the return bend can be blocked by inboard spacing boss 4, because the structural limitation of spacing boss 4, can not produce relative motion, thereby ensure that the sheath can be stably fixed on the return bend, when the return bend gets into holding the inside U type ring groove 3 of chamber 2, can not take out the rubber sheath secondary use, need whole rubber sheath when reaching life nature and deviate from.

An air conditioner comprising a rubber sheath for protecting a small elbow of an evaporator, wherein the small elbow of an evaporator copper pipe of the air conditioner is protected by the rubber sheath, so that a hollow copper pipe is prevented from sinking to form a 'bumping-down' phenomenon, the flow speed of a refrigerant is ensured to be stable, the performance of the whole machine is stabilized, and serious potential safety hazards and quality hazards caused by leakage are avoided.

In view of the above, after reading the present document, those skilled in the art should make various other corresponding changes without creative mental effort according to the technical scheme and the technical conception of the present invention, which are all within the scope of the present invention.

Claims (10)

1. The utility model provides a rubber sheath for protecting little elbow of evaporimeter, locates the sheath body on the little elbow of copper pipe including the cover, its characterized in that, the one end of sheath body has the inwards sunken chamber that holds, follows hold the intracavity edge and be provided with U type ring groove, hold the intracavity still be provided with the fixed spacing boss of sheath body, the sheath body adopts rubber to make.

2. The rubber sheath for protecting a small elbow of an evaporator according to claim 1, wherein the U-shaped annular groove is sleeved with the two ends of the small elbow of the copper pipe, and the two ends of the small elbow of the copper pipe are provided with containing parts in a flaring mode.

3. A rubber boot for protecting a small elbow of an evaporator according to claim 2, wherein the boot body is provided with a beveled bottom wall with respect to the other end of the accommodation chamber having an inward depression, the beveled bottom wall being obliquely symmetrical to both sides of the boot body.

4. A rubber boot for protecting a small bend of an evaporator according to claim 3, wherein said limit boss is formed in a slope shape, and said limit boss is disposed opposite to each other.

5. A rubber boot for protecting a small bend of an evaporator according to claim 4, wherein said boot body is made of soft rubber.

6. A rubber boot for protecting a small elbow of an evaporator according to claim 5, wherein the boot body is made of nitrile rubber and has a shore a hardness of 68-78.

7. A rubber jacket for protecting a small elbow of an evaporator according to claim 3, wherein the limit boss is in a long plate shape, the limit boss is provided with a fixed end, a flexible structure and a movable end, the fixed end and the movable end are provided with a folding surface when connected, the flexible structure is arranged on the upper side of the folding surface, and the movable end is connected with the fixed end through the flexible structure, so that the movable end revolves towards the inside of the accommodating part in the flexible structure.

8. The rubber boot for protecting a small elbow of an evaporator according to claim 7, wherein the limit boss is arranged in a staggered manner.

9. The rubber boot for protecting a small elbow of an evaporator according to claim 8, wherein the limit boss is made of hard plastic.

10. An air conditioner comprising a rubber boot, wherein the rubber boot is a rubber boot for protecting a small elbow of an evaporator according to any one of claims 1 to 9.

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