CN201982785U - Connecting rod component for reversing valve - Google Patents
Connecting rod component for reversing valve Download PDFInfo
- Publication number
- CN201982785U CN201982785U CN2011201205693U CN201120120569U CN201982785U CN 201982785 U CN201982785 U CN 201982785U CN 2011201205693 U CN2011201205693 U CN 2011201205693U CN 201120120569 U CN201120120569 U CN 201120120569U CN 201982785 U CN201982785 U CN 201982785U
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- Prior art keywords
- connecting rod
- rod
- con
- link assembly
- selector valve
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Abstract
The utility model discloses a connecting rod component for a reversing valve, which comprises a connecting rod (20) and a support frame (21), wherein the connecting rod (20) comprises a connecting rod body (22) and bending parts (23) which are positioned at the two ends of the connecting rod body (22) and are bent towards opposite directions, and the support frame (21) is provided with a first folding edge (L11) which is connected with the connecting rod body (22) and a second folding edge (L22) which is connected with the bending parts (23). The connecting rod component for the reversing valve is characterized in that: the first folding edge (L11) is connected with the connecting rod body (22) through a rivet or a screw, and is further welded to connect at the same time. The connecting rod component for the reversing valve has better connection strength consistency, and is more reliable, the bending resistance and the fatigue resistance of the connecting rod are improved, and the product quality can be very easily controlled as well.
Description
Technical field
The utility model belongs to the technical field of refrigeration control system, is specifically related to a kind of selector valve link assembly structure.
Background technique
In systems such as refrigeration, air-conditioning, extensively adopt selector valve (as four-way change-over valve) to realize the switching of cooling and heating, the commutation flexibility and reliability.Now, commercial air conditioner market is developed rapidly, and market is to the ever-increasing while of business PC demand, and is also more and more higher to the performance requirement of business PC, especially reliability of products requirement.Therefore require its component performance to be complementary with it, also just require four-way change-over valve also to have excellent performance and higher reliability.Existing four-way change-over valve is made up of main valve, pilot valve and electromagnetic coil.Main valve and pilot valve are assembled together by being positioned at support on the main valve and the link press span on the pilot valve.Electromagnetic coil on pilot valve, by pilot valve control main valve, adopts the pressure reduction switch motion by screw fixings, refrigerant flow direction in the automatic control system, thereby the switching of realization cooling and heating.
Shown in Fig. 1 four-way change-over valve structural representation, wherein main the and piston element 11 of connecting rod 12 links into an integrated entity by screw 13 respectively.In the four-way valve working procedure, after piston element 11 is under pressure, make connecting rod 12 be subjected to pulling force to both sides by screw 13.Therefore after pulling force acquired a certain degree, the flanging 10 of the connecting rod 12 shown in Fig. 2 (c) will produce the distortion that exceeds allowed band, finally made piston upset back lose efficacy because of sealing.Therefore the withstand voltage properties of connecting rod 12 directly has influence on the operational safety of four-way change-over valve and uses the reliability of this four-way change-over valve air-conditioning system.
Fig. 2 (a) is the plan view of prior art link assembly; Fig. 2 (b) is the plan view of figure (a); Fig. 2 (c) is the left view of Fig. 2 (a); Fig. 3 is the structural representation of the connecting rod of prior art link assembly; Fig. 4 (a) is the plan view of the supporting frame of prior art link assembly; Fig. 4 (b) is the plan view of Fig. 4 (a).Shown in Fig. 4 (a), Fig. 4 (b), supporting frame 101 comprises flanging L1 and flanging L2.Shown in Fig. 2 (a), Fig. 2 (b), the Placement of the flanging L1 of its dunnage 101 of prior art link assembly and the body 102 of connecting rod 12 is the modes that adopt butt welding point 103 to carry out resistance spot welding.This Placement major defect has the solder joint conformity bad, mainly is bigger to the join strength influence; The degree of detection of solder joint is very poor in addition, and solder joint can't be checked through the existence of defective with general means.Therefore, at first prior art products exists not enough on voltage endurance capability because the tie point strength problem makes the reinforing function of dunnage 101 not obtain performance; Secondly, owing to making the mother metal contact segment of two welding work pieces produce high temperature melting, resistance spot welding employing energising forms weld seam, therefore the intensity of weld seam is influenced by multiple uncertain factor such as area of contact size, its intensity conformity is relatively poor, be that process capability is relatively poor, can't guarantee that whole solder joint welding are reliable, and can't check, therefore cause reliability of products to reduce greatly by the mode of not destroying workpiece.And the case that causes withstand voltage pressure to descend greatly after in the process of the test of reality, also existing solder joint to pull.
The model utility content
The utility model aims to provide a kind of join strength high conformity, and reliable performance, bending resistance and anti-fatigue ability improve and can control at an easy rate the selector valve link assembly of the quality of product.
The disclosed selector valve link assembly of the utility model, comprise connecting rod and supporting frame, described connecting rod comprises con-rod only and is positioned at the described con-rod only two ends bending part of bending in opposite direction, support frame as described above has first flanging that is connected with described con-rod only and second flanging that is connected with described bending part, it is characterized in that, when described first flanging and described con-rod only are connected and fixed by rivet, further be connected and fixed with welding manner.
Preferably, the selector valve link assembly of structure has two supporting frame rivet holes on first flanging of described each supporting frame as mentioned above, has on the described con-rod only and support frame as described above rivet hole corresponding connecting rod rivet hole.
The disclosed another kind of selector valve link assembly of the utility model, comprise connecting rod and supporting frame, described connecting rod comprises con-rod only and is positioned at the con-rod only two ends bending part of bending in opposite direction, support frame as described above has first flanging that is connected with described con-rod only and second flanging that is connected with described bending part, it is characterized in that, when described first flanging and described con-rod only are connected and fixed by screw, further be connected and fixed with welding manner.
Preferably, the selector valve link assembly of structure has two supporting frame screw holes on first flanging of described each supporting frame as mentioned above, has on the described con-rod only and support frame as described above screw hole corresponding connecting rod screw hole.
Further, the selector valve link assembly of structure as mentioned above, described con-rod only is being provided with convex tendon near the connecting rod bending part.
Further, the selector valve link assembly of structure as mentioned above, the both sides of described con-rod only have first crimp and second crimp respectively, and described convex tendon is positioned on the end line of described first crimp and described second crimp.
Preferably, the selector valve link assembly of structure as mentioned above, described convex tendon is four, and with the axis of pitch and the longitudinal axis symmetry of described con-rod only.
Preferably, the selector valve link assembly of structure as mentioned above, described welding manner is argon arc welding.
Preferably, the selector valve link assembly of structure as mentioned above, the excessive part of at least one described bending part and described con-rod only is furnished with stiffening rib.
Preferably, the selector valve link assembly of structure as mentioned above, described connecting rod is made by board-like material.
Selector valve link assembly of the present utility model adopts rivet to connect and adds the fixedly connected mode of argon arc welding, makes that the join strength conformity between supporting frame and the connecting rod is better, more reliable.In addition, the utility model can also effectively be controlled quality of product under the prerequisite of not destroying workpiece.The utility model has also adopted convex tendon and two kinds of self-reinforced structures of stiffening rib, has improved the bending resistance and the fatigue resistance of connecting rod self.
Description of drawings
Fig. 1 is the structural representation of the four-way change-over valve of prior art;
Fig. 2 (a) is the plan view of prior art link assembly;
Fig. 2 (b) is the plan view of figure (a);
Fig. 2 (c) is the left view of Fig. 2 (a);
Fig. 3 is the structural representation of the connecting rod of prior art link assembly;
Fig. 4 (a) is the plan view of the supporting frame of prior art link assembly;
Fig. 4 (b) is the plan view of Fig. 4 (a);
First embodiment's of the link assembly that Fig. 5 (a) provides for the utility model plan view;
Fig. 5 (b) is the plan view of Fig. 5 (a);
Fig. 5 (c) is the left view of Fig. 5 (a);
Fig. 6 (a) is the plan view of supporting frame among Fig. 5;
Fig. 6 (b) is the plan view of Fig. 6 (a);
Second embodiment's of the link assembly that Fig. 7 provides for the utility model plan view;
Fig. 8 is the partial sectional view of the stiffening rib among second embodiment of the present utility model;
Fig. 9 (a), Fig. 9 (b) are the structural representation of the convex tendon among second embodiment of the present utility model;
Figure 10 is the position view of convex tendon among Fig. 9;
The 3rd embodiment's of the link assembly that Figure 11 (a) provides for the utility model plan view;
Figure 11 (b) is the plan view of Figure 11 (a);
Figure 11 (c) is the left view of Figure 11 (a);
Figure 12 (a) is the plan view of supporting frame among Figure 11;
Figure 12 (b) is the plan view of supporting frame among Figure 11
Figure 13 is the pressure-bending part amount of deformation comparative analysis figure of the utility model link assembly and prior art link assembly.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
First embodiment's of the link assembly that Fig. 5 (a) provides for the utility model plan view;
Fig. 5 (b) is the plan view of Fig. 5 (a); Fig. 5 (c) is the left view of Fig. 5 (a); Fig. 6 (a) is the plan view of supporting frame among Fig. 5; Fig. 6 (b) is the plan view of Fig. 6 (a).
Specifically, shown in Fig. 5 (a), link assembly comprises the integrated connecting rod 20 that is processed by sheet material, also comprises supporting frame 21, shown in Fig. 5 (b), connecting rod 20 comprises con-rod only 22 and is positioned at the bending part 23 of the bending in opposite direction at con-rod only 22 two ends.Shown in Fig. 5 (b), Fig. 6 (a), Fig. 6 (c), each supporting frame 21 has first flanging L11 that is connected with con-rod only 22 and the second flanging L22 that is connected with connecting rod bending part 23.Have two supporting frame rivet holes 201 on the first flanging L11, these two rivet holes 201 are positioned on the straight line that parallels with the connecting rod bending part.On con-rod only 22, have and supporting frame rivet hole 201 corresponding connecting rod rivet holes.Supporting frame rivet hole 201 is connected by corresponding rivet 204 with the connecting rod rivet hole, thereby realizes tentatively being connected and fixed of supporting frame 21 and con-rod only 22.
Afterwards, shown in Fig. 5 (c), the second flanging L22 of supporting frame 21 is connected by the mode of carrying out resistance spot welding at solder joint 205 places with the bending part 23 of link assembly, and this place mainly plays a part to be connected and fixed, and does not have bearing load.Shown in Fig. 5 (a), on each first flanging L11 and end straight line that the connecting rod bending part parallels, be distributed with two solder joints 203, the mode by argon arc welding makes being connected of supporting frame 21 and con-rod only 22 more closely reliable herein.At last, shown in Fig. 5 (a), Fig. 5 (c), Fig. 6 (a), the second flanging L22 to connecting rod bending part 23 and supporting frame 21 in the present embodiment carries out one tapping 206, thereby, by piston blot 207 the second flanging L22 of supporting frame 21 and the bending part 23 of con-rod only are further coupled together again by increasing effective connecting thread of the screw thread increase piston blot 207 on the supporting frame.
For bending resistance and the fatigue resistance that increases the utility model link assembly, the utility model provides second kind of embodiment, below second kind of embodiment of the present utility model is described.
Second embodiment's of the link assembly that Fig. 7 provides for the utility model plan view; Fig. 8 is the partial sectional view of the stiffening rib among second embodiment of the present utility model; Fig. 8 is the partial sectional view of the stiffening rib among second embodiment of the present utility model; Fig. 9 (a), Fig. 9 (b) are the structural representation of the convex tendon among second embodiment of the present utility model; Figure 10 is the position view of convex tendon among Fig. 9.Present embodiment and embodiment once in identical part no longer repeat.
Specifically, shown in Figure 8 as Fig. 7, what the link assembly of present embodiment was different with previous embodiment is that the both sides of con-rod only 22 have the first crimp L33 and the second crimp L44 respectively, and present embodiment has also been set up the self-reinforced structure of two kinds of connecting rods.First kind of self-reinforced structure is processed with two stiffening ribs 24 that cave in, spaced apart for the transition position at each connecting rod bending part 23 and con-rod only 22 adopts the cold punching mode, improves the bending resistance of connecting rod self with this.Simultaneously, another kind of self-reinforced structure such as Fig. 9 (a), Fig. 9 (b), shown in Figure 10, on con-rod only 22, be provided with four convex tendons 25 near the connecting rod bending part, these four convex tendons 25 are with the axis of pitch and the longitudinal axis symmetry of con-rod only 22, and are positioned on the end line L of the first crimp L33 of connecting rod 20 and the second crimp L44.Is tired weakness zone near the line L of end, convex tendon 25 the fatigue resistance that can effectively increase connecting rod is set.
In addition, the utility model also provides another selector valve link assembly.Shown in Figure 11 (a), Figure 11 (b), Figure 11 (c), what this link assembly was different with aforementioned first kind of link assembly is that the con-rod only 22 of this link assembly adopts screw 304 to be connected with the first flanging L11 of supporting frame 21.Promptly shown in Figure 11 (a), Figure 11 (b), Figure 11 (c), Figure 12 (a), Figure 12 (b), each supporting frame 21 is provided with two supporting frame screw holes 301, con-rod only 22 is provided with and supporting frame screw hole 301 corresponding connecting rod tapped holes, is undertaken fixedly connected by screw 304 again.So also can reach the connection effect of first kind of selector valve, and also can guarantee the controllability and the reliability of join strength with link assembly.
The number of rivet hole and screw hole is not limited to the number among each embodiment in the embodiment in the utility model, can change according to the needs in the actual production.The position of the solder joint of resistance spot welding and argon arc welding and number also can be adjusted as required.
Link assembly of the present utility model can carry bigger load, as shown in figure 13, curve A is prior art link assembly pressure-bending part amount of deformation δ curve among the figure, curve B is the utility model link assembly pressure P-bending amount of deformation δ curve, and C1 and C2 are respectively the pressure spot when bending part 23 suddenlys change in prior art and the utility model.From shown in the figure as can be seen, link assembly of the present utility model can carry bigger load p because the variation of Placement has strengthened the intensity and the conformity that connect.The raising of link assembly withstand voltage properties, make selector valve operational safety and use the reliability of the air-conditioning system of this selector valve also significantly to improve.
Selector valve link assembly of the present utility model, con-rod only adopts rivet or screw mode to be connected with supporting frame, can design the size and location of rivet and screw by the actual loading situation of calculating or survey supporting frame and connecting rod connection part, and can the quantified controlling join strength by actual process certification.Therefore, join strength conformity of the present utility model is better, more reliable, and quality of product can be controlled effectively easily.In addition, the design of two kinds of self-reinforced structures also provides the bending resistance and the fatigue resistance of link assembly in the link assembly.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. selector valve link assembly, comprise connecting rod (20) and supporting frame (21), described connecting rod (20) comprises con-rod only (22) and is positioned at described con-rod only (22) the two ends bending part of bending (23) in opposite direction, support frame as described above (21) has first flanging (L11) that is connected with described con-rod only (22) and second flanging (L22) that is connected with described bending part (23), it is characterized in that, described first flanging (L11) and described con-rod only (22) further are connected and fixed with welding manner when being connected and fixed by rivet.
2. selector valve link assembly according to claim 1, it is characterized in that, have two supporting frame rivet holes (201) on first flanging (L11) of described each supporting frame (21), have on the described con-rod only (22) and support frame as described above rivet hole (201) corresponding connecting rod rivet hole.
3. selector valve link assembly, comprise connecting rod (20) and supporting frame (21), described connecting rod (20) comprises con-rod only (22) and is positioned at described con-rod only (22) the two ends bending part of bending (23) in opposite direction, support frame as described above (21) has first flanging (L11) that is connected with described con-rod only (22) and second flanging (L22) that is connected with described bending part (23), it is characterized in that, described first flanging (L11) and described con-rod only (22) further are connected and fixed with welding manner when being connected and fixed by screw.
4. selector valve link assembly according to claim 3, it is characterized in that, have two supporting frame screw holes (301) on first flanging (L11) of described each supporting frame (21), have on the described con-rod only (22) and support frame as described above screw hole (301) corresponding connecting rod screw hole.
5. according to the described arbitrary selector valve link assembly of claim 1-4, it is characterized in that described con-rod only (22) is being provided with convex tendon (25) near the connecting rod bending part.
6. selector valve link assembly according to claim 5, it is characterized in that, the both sides of described con-rod only (22) have first crimp (L33) and second crimp (L44) respectively, and described convex tendon (25) is positioned on the end line of described first crimp (L33) and described second crimp (L44).
7. selector valve link assembly according to claim 6 is characterized in that, described convex tendon (25) is four, and with the axis of pitch and the longitudinal axis symmetry of described con-rod only (22).
8. according to claim 1-4,6,7 described arbitrary selector valve link assemblies is characterized in that described welding manner is argon arc welding.
9. according to claim 1-4,6,7 described arbitrary selector valve link assemblies is characterized in that, at least one described bending part (23) is furnished with stiffening rib (24) with the excessive part of described con-rod only (22).
10. according to claim 1-4,6,7 described arbitrary selector valve link assemblies is characterized in that described connecting rod (20) is made by board-like material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201205693U CN201982785U (en) | 2011-04-22 | 2011-04-22 | Connecting rod component for reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201205693U CN201982785U (en) | 2011-04-22 | 2011-04-22 | Connecting rod component for reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982785U true CN201982785U (en) | 2011-09-21 |
Family
ID=44610246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201205693U Expired - Fee Related CN201982785U (en) | 2011-04-22 | 2011-04-22 | Connecting rod component for reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088840A (en) * | 2014-06-29 | 2014-10-08 | 南京梅山冶金发展有限公司 | Foldable forced reversing device for reversing valve and application method of device |
-
2011
- 2011-04-22 CN CN2011201205693U patent/CN201982785U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088840A (en) * | 2014-06-29 | 2014-10-08 | 南京梅山冶金发展有限公司 | Foldable forced reversing device for reversing valve and application method of device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20200422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |