CN211901738U - Connecting structure of automobile air conditioner filling valve seat and pipeline - Google Patents
Connecting structure of automobile air conditioner filling valve seat and pipeline Download PDFInfo
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- CN211901738U CN211901738U CN202020495770.9U CN202020495770U CN211901738U CN 211901738 U CN211901738 U CN 211901738U CN 202020495770 U CN202020495770 U CN 202020495770U CN 211901738 U CN211901738 U CN 211901738U
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- pipeline
- filling valve
- connecting hole
- valve seat
- annular boss
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Abstract
The utility model discloses a connection structure of a filling valve seat and a pipeline of an automobile air conditioner, which belongs to the field of automobile air conditioners and comprises a filling valve seat and a pipeline, wherein the outlet end of the filling valve seat is sequentially provided with a second connecting hole and a first connecting hole from outside to inside, the joint of the second connecting hole and the first connecting hole is provided with a step surface, the inlet end of the pipeline is in clearance fit with the first connecting hole and is provided with a sealing ring at the matching part, the position of the outer wall of the pipeline, which is close to the inlet end, is provided with an annular boss in clearance fit with the second connecting hole, one end surface of the annular boss is attached to the step surface, a certain interval is reserved between the other end surface of the annular boss and the outlet end surface of the filling valve seat, the second connecting hole positioned in the interval is riveted inwards to form an annular flanging, and the annular flanging is attached to the end surface of the step, to connect the filling valve seat to the line. By adopting the technical scheme, a series of problems existing in the existing welding structure can be effectively solved.
Description
Technical Field
The utility model relates to a vehicle air conditioner field, more specifically say, relate to a vehicle air conditioner filling valve disk seat and connection structure of pipeline.
Background
At present, because of the limitation of the space of a vehicle body, a plurality of filling ports of the automobile air conditioner pipeline need to be additionally provided with extension pipelines, so that the connection between a filling valve seat and a pipeline port is involved, the existing connection structure between the filling valve seat and the pipeline is realized by welding, and two realization modes are provided, one is as follows: the pipeline tip carries out the flaring, and the one end of filling valve disk seat is inserted in the flaring, welds, and this kind of welded structure has following problem: 1) because the flaring processing belongs to the stamping of a die, the shape, the circle center degree and the tolerance of the flaring can not ensure the consistency, and the valve seat of the filling valve is inserted into the flaring to generate a gap, thereby greatly increasing the welding difficulty and easily generating welding defects such as blowholes, insufficient welding and the like; 2) the welding liquid easily flows back to the interior of the pipeline, and the risk of welding blockage occurs. The other is as follows: one end of the pipeline is inserted into a valve seat hole of the filling valve to be welded, and the welding structure has the following problems: the welding liquid easily flows back to the position where the filling valve seat and the filling valve core are assembled, so that the filling valve seat and the filling valve core cannot be assembled or cannot be assembled in place.
In summary, it is an urgent need to solve the problems in the art to provide a novel connection structure for a valve seat and a pipeline of a filling valve of an automobile air conditioner.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved by the utility model
An object of the utility model is to overcome prior art's defect, provide a connection structure of vehicle air conditioner filling valve disk seat and pipeline, adopt the technical scheme of the utility model for cancel welding process on the basis that need not newly-increased other auxiliary fixtures, thereby effectively solve the welding degree of difficulty that current welding structure exists big, easily take place the plug welding, and the unable assembly of filling valve disk seat and filling valve case or assemble scheduling problem not in place.
Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a connection structure of car air conditioner filling valve disk seat and pipeline, including filling valve disk seat and pipeline, wherein, the exit end outside-in of filling valve disk seat has set gradually second connecting hole and first connecting hole, the axis of this second connecting hole and first connecting hole all coincides with the axis of filling valve disk seat, and the junction of this second connecting hole and first connecting hole has the step face, the entrance point of above-mentioned pipeline passes through the second connecting hole and stretches into in the first connecting hole, and with first connecting hole clearance fit and be provided with the sealing washer in cooperation department, be provided with the annular boss with second connecting hole clearance fit in the position department that this pipeline outer wall is close to the entrance point, an end face of this annular boss and the laminating of above-mentioned step face, keep a definite interval between another terminal surface of this annular boss and the exit end terminal surface of filling valve disk seat, the hole wall of the second connecting hole positioned in the interval is riveted inwards to form an annular flange, and the annular flange is attached to the end face, back to the step face, of the annular boss so as to connect the valve seat of the filling valve to the pipeline.
As a further improvement of the present invention, the calculation formula of the length L of the second connection hole is L = (a-B)/2 + C-0.4, wherein a is the outer diameter of the annular boss; b is the outer diameter of the pipeline; and C is the thickness of the annular boss.
As a further improvement, the clearance value between the annular boss and the second connecting hole is 0.1 mm.
As a further improvement, the inlet end outer wall of the pipeline is provided with an annular groove, and the sealing ring is arranged in the annular groove.
As a further improvement, the annular boss and the pipeline are connected into a whole through punching.
As a further improvement of the utility model, the annular boss and the pipeline are welded into a whole.
As a further improvement of the utility model, the pipeline is an aluminum pipe.
Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the utility model discloses a connection structure of vehicle air conditioner filling valve disk seat and pipeline, the entrance point of its pipeline passes the second connecting hole and stretches into in the first connecting hole, make the laminating of an annular boss terminal surface that sets up on the pipeline outer wall at the step face, the inside riveting of second connecting hole pore wall that will stretch out outside annular boss forms the laminating of annular turn-ups at another terminal surface of annular boss again, in order to connect the filling valve disk seat on the pipeline, this filling valve disk seat makes with the connection structure of pipeline and cancelled welding process on the basis that need not newly-increased other auxiliary fixtures, thereby it is big effectively to solve the welding degree of difficulty that current welding structure exists, easily take place the blocking weld, and the unable assembly or the not scheduling problem of putting in place of filling valve disk seat and filling valve case.
(2) The utility model discloses a connection structure of a vehicle air conditioner filling valve seat and a pipeline, the calculation formula of the length L of a second connecting hole is L = (A-B)/2 + C-0.4, wherein A is the outer diameter of an annular boss; b is the outer diameter of the pipeline; and C is the thickness of the annular boss. It should be noted that: the utility model provides a A, B and C's value is the known value, when L's setting value is above-mentioned computational result, the annular turn-ups after its second connecting hole length of design guarantees on the one hand that the riveting can laminate completely at the terminal surface of annular boss, on the other hand can guarantee the area of contact maximize of annular turn-ups and annular boss, thereby make filling valve disk seat can stabilize firm connection on the pipeline, avoid because of the riveting volume is not enough to drop or lead to whole structure life to shorten, also can avoid because of the riveting volume too big riveting process that leads to corrugates or can't realize the riveting.
(3) The utility model discloses a connection structure of vehicle air conditioner filling valve disk seat and pipeline, its annular boss is 0.1mm with second connecting hole clearance fit's clearance value. It should be noted that: the utility model discloses a set up the clearance value into 0.1mm, can further improve the joint strength of filling valve disk seat and pipeline on the one hand, on the other hand is convenient for assemble.
(4) The utility model discloses a connection structure of vehicle air conditioner filling valve disk seat and pipeline, structural design is reasonable, and the principle is simple, convenient to popularize and use.
Drawings
Fig. 1 is a schematic structural view of the automobile air conditioner filling valve after the valve seat is connected with a pipeline;
FIG. 2 is a schematic structural view of the automotive air conditioner filling valve before the valve seat is connected with the pipeline;
FIG. 3 is a schematic view of FIG. 2 cut in half along its central axis;
FIG. 4 is a schematic view of the filling valve seat of the present invention cut in half along its central axis;
fig. 5 is a schematic structural diagram of the middle pipeline of the present invention.
The reference numerals in the schematic drawings illustrate:
01. a filling valve seat;
011. a first connection hole; 012. a second connection hole;
02. a pipeline;
021. an annular groove; 022. an annular boss;
03. and (5) sealing rings.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1
As shown in fig. 1-5, a connection structure of a filling valve seat and a pipeline of an automobile air conditioner of this embodiment includes a filling valve seat 01 and a pipeline 02, wherein an outlet end of the filling valve seat 01 is sequentially provided with a second connection hole 012 and a first connection hole 011 from outside to inside, central axes of the second connection hole 012 and the first connection hole 011 are both coincident with a central axis of the filling valve seat 01, a step surface is provided at a connection position of the second connection hole 012 and the first connection hole 011, a diameter of the second connection hole 012 is larger than a diameter of the first connection hole 011, an inlet end of the pipeline 02 passes through the second connection hole 012 and extends into the first connection hole 011, and is in clearance fit with the first connection hole 011 and is provided with a sealing ring 03 at the matching position, an outer wall of the pipeline 02 is provided with an annular boss 022 in clearance fit with the second connection hole 012 at a position close to the inlet end, one end face of the annular boss 022 is attached to the step face, a certain distance is reserved between the other end face of the annular boss 022 and the end face of the outlet end of the filling valve seat 01, the hole wall of the second connecting hole 012 located in the distance is riveted inwards to form an annular flange, and the annular flange is attached to the end face, opposite to the step face, of the annular boss 022 so as to connect the filling valve seat 01 to the pipeline 02. Specifically, in this embodiment: the annular boss 022 and the pipeline 02 are connected into a whole through stamping, or the annular boss 022 and the pipeline 02 are welded into a whole; the pipeline 02 is an aluminum pipe.
It should be noted that: the utility model discloses in the entrance point of well pipeline 02 passes in second connecting hole 012 stretches into first connecting hole 011, make annular boss 022 one end face laminating at the step face that sets up on the pipeline 02 outer wall, the inside riveting of second connecting hole 012 pore wall that will stretch out outside annular boss 022 again forms annular turn-ups laminating at another terminal surface of annular boss 022, in order to connect filling valve disk seat 01 on pipeline 02, this filling valve disk seat 01 makes with pipeline 02's connection structure and has cancelled welding process on the basis that need not newly-increased other auxiliary fixtures, thereby it is big effectively to solve the welding degree of difficulty that current welding structure exists, the easy blocking weld that takes place, and filling valve disk seat and the unable assembly of filling valve case or the assembly scheduling problem that does not target in place, this filling valve disk seat 01 is simple and practical with pipeline 02's connection structure. It needs to be further explained that: the utility model discloses a sealing washer 03 radial seal guarantees sealed effect.
The calculation formula of the length L of the second connection hole 012 is L = (a-B)/2 + C-0.4, where a is the outer diameter of the annular boss 022; b is the outer diameter of the pipeline 02; c is the thickness of the annular boss 022. It should be noted that: the values of A, B and C in the utility model are known values, when the setting value of L is the calculation result of the above calculation formula, the length of the second connection hole 012 ensures that the riveted annular flange can be completely attached to the end face of the annular boss 022, and the contact area between the annular flange and the annular boss 022 is maximized, so that the filling valve seat 01 can be stably and firmly connected to the pipeline 02, avoiding the whole structure from being shortened in service life due to insufficient riveting amount, and also avoiding the riveting process from wrinkling or failing to realize riveting due to excessive riveting amount, and when the setting value of L is larger than the calculation result of the above calculation formula, the riveted annular flange can not be completely attached to the end face of the annular boss 022, when the setting value of L is smaller than the calculation result of the above calculation formula, the riveted annular flange can be completely attached to the end face of the annular boss 022, however, the contact area between the annular flange and the annular boss 022 is small, and therefore, the connection strength between the filling valve seat 01 and the pipeline 02 is weak no matter the setting value of L is larger than the calculation result of the calculation formula or smaller than the calculation result of the calculation formula, and in conclusion, the setting value of L has a certain influence on the connection strength between the filling valve seat 01 and the pipeline 02, and how to determine the setting value of L is one of the technical problems to be solved by the present invention. Specifically, in this embodiment: when the value of a is set to 13.8mm, the value of B is set to 8mm (it should be explained here that B is the outer diameter far from the inlet port 02), the value of C is set to 2mm, and the value of L calculated by the above calculation formula is 4.5mm, the length of the second connection hole 012 is designed to enable the filling valve seat 01 to be stably and firmly connected to the pipeline 02 when the set value of L is 4.5 mm.
The gap value of the clearance fit between the annular boss 022 and the second connection hole 012 is 0.1 mm. It should be noted that: the utility model discloses a set up the clearance value into 0.1mm, can further improve the joint strength of filling valve disk seat 01 and pipeline 02 on the one hand, on the other hand is convenient for assemble.
An annular groove 021 is formed in the outer wall of the inlet end of the pipeline 02, and the sealing ring 03 is disposed in the annular groove 021. It should be noted that: the utility model discloses a set up annular groove 021 on the entrance point outer wall of pipeline 02, can provide the mounted position for sealing washer 03, prevent that sealing washer 03 from moving along pipeline 02 axial.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a connection structure of vehicle air conditioner filling valve disk seat and pipeline which characterized in that: the filling valve comprises a filling valve seat (01) and a pipeline (02), wherein the outlet end of the filling valve seat (01) is sequentially provided with a second connecting hole (012) and a first connecting hole (011) from outside to inside, the central axes of the second connecting hole (012) and the first connecting hole (011) are coincident with the central axis of the filling valve seat (01), the joint of the second connecting hole (012) and the first connecting hole (011) is provided with a step surface, the inlet end of the pipeline (02) penetrates through the second connecting hole (012) to extend into the first connecting hole (011) and is in clearance fit with the first connecting hole (011) and is provided with a sealing ring (03) at the matching part, the position of the outer wall of the pipeline (02) close to the inlet end is provided with an annular boss (022) in clearance fit with the second connecting hole (012), and one end surface of the annular boss (022) is attached to the step surface, a certain distance is reserved between the other end face of the annular boss (022) and the end face of the outlet end of the filling valve seat (01), the hole wall of a second connecting hole (012) located in the distance is riveted inwards to form an annular flanging, and the annular flanging is attached to the end face, back to the step face, of the annular boss (022) so as to connect the filling valve seat (01) to the pipeline (02).
2. The connecting structure of the valve seat and the pipeline of the filling valve of the automobile air conditioner as claimed in claim 1, wherein: the calculation formula of the length L of the second connecting hole (012) is L = (A-B)/2 + C-0.4, wherein A is the outer diameter of the annular boss (022); b is the outer diameter of the pipeline (02); c is the thickness of the annular boss (022).
3. The connecting structure of the valve seat and the pipeline of the filling valve of the automobile air conditioner as claimed in claim 1, wherein: the clearance value of clearance fit between the annular boss (022) and the second connecting hole (012) is 0.1 mm.
4. The connecting structure of the valve seat and the pipeline of the filling valve of the automobile air conditioner as claimed in claim 1, wherein: an annular groove (021) is formed in the outer wall of the inlet end of the pipeline (02), and the sealing ring (03) is arranged in the annular groove (021).
5. The connecting structure of the valve seat and the pipeline of the filling valve of the automobile air conditioner as claimed in claim 1, wherein: the annular boss (022) and the pipeline (02) are connected into a whole through stamping.
6. The connecting structure of the valve seat and the pipeline of the filling valve of the automobile air conditioner as claimed in claim 1, wherein: the annular boss (022) and the pipeline (02) are welded into a whole.
7. The connecting structure of the valve seat and the pipeline of the filling valve of the automobile air conditioner as claimed in claim 1, wherein: the pipeline (02) is an aluminum pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020495770.9U CN211901738U (en) | 2020-04-08 | 2020-04-08 | Connecting structure of automobile air conditioner filling valve seat and pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020495770.9U CN211901738U (en) | 2020-04-08 | 2020-04-08 | Connecting structure of automobile air conditioner filling valve seat and pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901738U true CN211901738U (en) | 2020-11-10 |
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ID=73272281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020495770.9U Active CN211901738U (en) | 2020-04-08 | 2020-04-08 | Connecting structure of automobile air conditioner filling valve seat and pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211901738U (en) |
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2020
- 2020-04-08 CN CN202020495770.9U patent/CN211901738U/en active Active
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