CN203857156U - Connection valve - Google Patents
Connection valve Download PDFInfo
- Publication number
- CN203857156U CN203857156U CN201420284123.8U CN201420284123U CN203857156U CN 203857156 U CN203857156 U CN 203857156U CN 201420284123 U CN201420284123 U CN 201420284123U CN 203857156 U CN203857156 U CN 203857156U
- Authority
- CN
- China
- Prior art keywords
- fastening piece
- ring body
- conical surface
- bite
- linkage section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a connection valve which is characterized by comprising a clamping part. The two ends of the clamping part are provided with outer connection sections, a center hole is formed inside the clamping part, and the two ends of the center hole are sequentially and outwards provided with a first seal shoulder and a second seal shoulder. The seal shoulders are provided with a first seal ring and a second seal ring respectively. The interiors of the outer connection sections are of hollow structures. A fastening assembly is installed in the hollow structures. A first fastening part, a second fastening part and a third fastening part are sequentially inserted into the outer connection sections, wherein the third fastening part is exposed out of the outer end face of the corresponding outer connection section by a certain distance. A compressing screw cap is installed on the outer circumference of the corresponding outer connection section in a screwed mode. In the process of screwing the compressing screw cap, thrust for inward extrusion is generated, the components in mutual contact in pairwise mode mutually extrude and push, in the pushing process, the fastening parts in mutual matching will generate external force for inward shrinking to fix an outer connection tube, and the mutual action among the components achieves the purposes of preventing liquid leakage and gas leakage.
Description
Technical field
The utility model belongs to air-conditioning copper pipe interconnection technique field, particularly relates to a kind of connection valve.
Background technique
As everyone knows, link plays vital effect in the logical field of pipe, and it will directly affect laying, maintenance, the security problems of whole pipe-line system; For example, in field of air conditioning, generally at split-type air conditioner, adopt welding technique, be i.e. after copper pipe docking, weld together, it is to connect between indoor set and outdoor unit, guarantee that inside and outside machine forms a refrigeration cycle, it will directly affect the normal operation of whole refrigeration system; Existing connecting head is equipped with two adapter assemblies, between two adapter assemblies, be threaded connection, efficient and convenient during installation, what but two adapter assemblies and pipeline joint adopted is to be welded to connect, adopt welded structure easily to produce that the cryogen sternly not causing because of welding is a small amount of to be leaked and lose heart and wait Quality Accident generation, so higher to technician's technical requirements.When installing and manufacturing air-conditioning, because of needs welding, so time-consuming taking a lot of work, inefficiency is subject to certain narrow limitation when reality is used; In addition, adopt its sealing that is threaded of said structure not good, at assembling type, need to carry out special seal processing.
Summary of the invention
The utility model for solve the technical problem existing in known technology provide a kind of simple in structure, quick and easy for installation, install firmly, good sealing effect, the connection valve of increasing work efficiency.
The technological scheme that the utility model is taked for the technical problem existing in solution known technology is:
A connection valve, is characterized in that: comprise clamping part, the two ends of described clamping part are provided with outer linkage section, and the inside of described clamping part is provided with center hole, and the two ends of described center hole are outwards provided with the first sealing shoulder and the second sealing shoulder successively; In the first sealing shoulder and the second sealing shoulder, be separately installed with the first seal ring and the second seal ring; The inside of described outer linkage section is hollow structure, in described hollow structure, fastener assembly is installed;
Described fastener assembly comprises the first fastening piece, the second fastening piece and the 3rd fastening piece, and wherein the first fastening piece comprises ring body I, and one end inner circumference of described ring body is provided with the conical surface; The other end of described ring body is plane structure;
Described the second fastening piece comprises ring body II, and one end outer peripheral surface of described ring body II is provided with the conical surface, in the cone bottom of the conical surface in axial direction, be outward extended with the first bite; The other end inner peripheral surface of described ring body II is provided with the conical surface;
Described the 3rd fastening piece comprises ring body III, and one end excircle of described ring body III is provided with the conical surface, in the cone bottom of the conical surface in axial direction, be outward extended with the second bite; The other end of described ring body III is plane structure;
The first bite on the second above-mentioned fastening piece is inserted on the conical surface of inner circumference of the first fastening piece, and the second bite on described the 3rd fastening piece is inserted on the conical surface of inner circumference of the second fastening piece; The first fastening piece, the second fastening piece and the 3rd fastening piece are inserted in outer linkage section successively, and wherein said the 3rd fastening piece exposes outside outer linkage section exterior edge face certain distance;
The excircle of outer linkage section is provided with outside thread, and the outer end of described outer linkage section is screwed with clamping nut;
Described clamping nut comprises nut body, the exterior edge face of described nut body is one-body molded gland, the central position of described gland is provided with the mounting hole with the center hole coaxial line of above-mentioned clamping part, described outer connecting pipe is inserted in mounting hole, and the internal diameter of mounting hole and the external diameter of outer connecting pipe main body match; The interior edge face of described gland is provided with the circular orientation groove coaxial with center hole, the planar ends respective outer side edges of the ring body III of positioning groove and above-mentioned the 3rd fastening piece.
The utility model can also adopt following technical measures:
The external diameter of described the first fastening piece, the second fastening piece and the 3rd fastening piece equals the internal diameter of the outer linkage section of hollow structure, and the internal diameter of described the first fastening piece, the second fastening piece and the 3rd fastening piece equals the external diameter of outer connecting pipe.
The internal diameter of described the first seal ring equals the internal diameter of outer connecting pipe, and the internal diameter of described the second seal ring equals the external diameter of outer connecting pipe.
The length of described the first bite and the second bite is 0.1～5mm.
The outer surface of described gland is integrally formed with protection boss.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, save existing outer connecting pipe welding step, adopt built-in fastener assembly assembly structure, effect and connecting copper pipe by fastener assembly carry out interlock, have thoroughly improved traditional manufacturing process; Adopt non-welding structure, reduced manufacturing process, greatly improved manufacturing efficiency, and improved the up-to-standard rate of product and the total quality of product; Aspect installation and maintenance, reduce difficulty, reducing operator's labor intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model three-dimensional exploded view;
Fig. 3 and Fig. 4 are the first fastener constructions schematic diagram;
Fig. 5 and Fig. 6 are the second fastener constructions schematic diagram;
Fig. 7 and Fig. 8 are clamping nut structural representations;
Fig. 9 is the first fastener constructions schematic diagram; .
In figure: 1, clamping part; 1-1, center hole; 1-2, the first sealing shoulder; 1-3, the second sealing shoulder; 2, outer linkage section; 3, the first seal ring; 4, the second seal ring; 5, fastener assembly; 5-1, the first fastening piece; 5-10, ring body I; 5-11, the conical surface; 5-12, plane structure; 5-2, the second fastening piece; 5-20, ring body II; 5-21, the conical surface; 5-22, the first bite; 5-23, the conical surface; 5-3, the 3rd fastening piece; 5-30, ring body III; 5-31, the conical surface; 5-32, the second bite; 5-33, plane structure; 6, clamping nut; 6-1, nut body; 6-2, gland; 6-3, mounting hole; 6-4, circular orientation groove; 6-5, protection boss; 7, outer connecting pipe.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, a connection valve, comprises clamping part 1, and the two ends of described clamping part are provided with outer linkage section 2, the inside of described clamping part is provided with center hole 1-1, and the two ends of described center hole are outwards provided with the first sealing shoulder 1-2 and the second sealing shoulder 1-3 successively; In the first sealing shoulder and the second sealing shoulder, be separately installed with the first seal ring 3 and the second seal ring 4; The inside of described outer linkage section is hollow structure, and fastener assembly 5 is installed in described hollow structure;
Described fastener assembly comprises the first fastening piece 5-1, the second fastening piece 5-2 and the 3rd fastening piece 5-3, refers to Fig. 3 and Fig. 4, and wherein the first fastening piece comprises ring body I5-10, and one end inner circumference of described ring body is provided with conical surface 5-11; The other end of described ring body is plane structure 5-12;
Refer to Fig. 5 and Fig. 6, described the second fastening piece comprises ring body II5-20, and one end outer peripheral surface of described ring body II is provided with conical surface 5-21, in the cone bottom of the conical surface in axial direction, be outward extended with the first bite 5-22; The other end inner peripheral surface of described ring body II is provided with conical surface 5-23;
Refer to Fig. 7 and Fig. 8, described the 3rd fastening piece comprises ring body III5-30, and one end excircle of described ring body III is provided with conical surface 5-31, in the cone bottom of the conical surface in axial direction, be outward extended with the second bite 5-32; The other end of described ring body III is plane structure 5-33; The first bite on the second above-mentioned fastening piece is inserted on the conical surface of inner circumference of the first fastening piece, and the second bite on described the 3rd fastening piece is inserted on the conical surface of inner circumference of the second fastening piece; The first fastening piece 5-1, the second fastening piece 5-2 and the 3rd fastening piece 5-3 are inserted in outer linkage section 2 successively, and wherein said the 3rd fastening piece exposes outside outer linkage section exterior edge face certain distance;
The excircle of outer linkage section is provided with outside thread 2-1, and the outer end of described outer linkage section is screwed with clamping nut 6;
Refer to Fig. 9, described clamping nut 6 comprises nut body 6-1, the exterior edge face of described nut body is one-body molded gland 6-2, the central position of described gland is provided with the mounting hole 6-3 with the center hole coaxial line of above-mentioned clamping part, described outer connecting pipe is inserted in mounting hole, and the internal diameter of mounting hole and the external diameter of outer connecting pipe main body match; The interior edge face of described gland is provided with the circular orientation groove 6-4 coaxial with center hole, and positioning groove coordinates with the planar ends structure 5-33 of the ring body III of above-mentioned the 3rd fastening piece.
In upper structure, in order to realize better sealing effect, for fear of internal diameter after connecting not etc., affect fluid in internal flow, the external diameter of described the first fastening piece 5-1, the second fastening piece 5-2 and the 3rd fastening piece 5-3 equals the internal diameter of the outer linkage section 2 of hollow structure, and the internal diameter of described the first fastening piece, the second fastening piece and the 3rd fastening piece equals the external diameter of outer connecting pipe 7; The internal diameter of described the first seal ring 3 equals the internal diameter of outer connecting pipe, and the internal diameter of described the second seal ring 4 equals the external diameter of outer connecting pipe.
In said structure, the length of described the first bite and the second bite is 0.1～5mm, and the thickness of the first bite and the second bite can be according to the actual requirement of copper pipe, and technical parameters such as wall thickness, hardness is set.
In said structure, in order to prevent rupturing between outer connecting pipe and gland, the outer surface of described gland is integrally formed with protection boss 6-5.
In its process screwing at clamping nut, produce an inwardly thrust for extruding, be in contact with one another between any two component and mutually push push-tight, in the process of push-tight, its bite can produce one towards the external force of internal contraction, its bite will produce suitable impression on outer connecting pipe, and then reaches the fixedly effect of outer connecting pipe, between component, interacts and reaches the object that prevents leakage and gas leakage.
The above is only to preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, every foundation technical spirit of the present utility model is to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (5)
1. a connection valve, is characterized in that: comprise clamping part, the two ends of described clamping part are provided with outer linkage section, and the inside of described clamping part is provided with center hole, and the two ends of described center hole are outwards provided with the first sealing shoulder and the second sealing shoulder successively; In the first sealing shoulder and the second sealing shoulder, be separately installed with the first seal ring and the second seal ring; The inside of described outer linkage section is hollow structure, in described hollow structure, fastener assembly is installed;
Described fastener assembly comprises the first fastening piece, the second fastening piece and the 3rd fastening piece, and wherein the first fastening piece comprises ring body I, and one end inner circumference of described ring body is provided with the conical surface; The other end of described ring body is plane structure;
Described the second fastening piece comprises ring body II, and one end outer peripheral surface of described ring body II is provided with the conical surface, in the cone bottom of the conical surface in axial direction, be outward extended with the first bite; The other end inner peripheral surface of described ring body II is provided with the conical surface;
Described the 3rd fastening piece comprises ring body III, and one end excircle of described ring body III is provided with the conical surface, in the cone bottom of the conical surface in axial direction, be outward extended with the second bite; The other end of described ring body III is plane structure;
The first bite on the second above-mentioned fastening piece is inserted on the conical surface of inner circumference of the first fastening piece, and the second bite on described the 3rd fastening piece is inserted on the conical surface of inner circumference of the second fastening piece; The first fastening piece, the second fastening piece and the 3rd fastening piece are inserted in outer linkage section successively, and wherein said the 3rd fastening piece exposes outside outer linkage section exterior edge face certain distance;
The excircle of outer linkage section is provided with outside thread, and the outer end of described outer linkage section is screwed with clamping nut;
Described clamping nut comprises nut body, the exterior edge face of described nut body is one-body molded gland, the central position of described gland is provided with the mounting hole with the center hole coaxial line of above-mentioned clamping part, described outer connecting pipe is inserted in mounting hole, and the internal diameter of mounting hole and the external diameter of outer connecting pipe main body match; The interior edge face of described gland is provided with the circular orientation groove coaxial with center hole, the planar ends respective outer side edges of the ring body III of positioning groove and above-mentioned the 3rd fastening piece.
2. connection valve according to claim 1, it is characterized in that: the external diameter of described the first fastening piece, the second fastening piece and the 3rd fastening piece equals the internal diameter of the outer linkage section of hollow structure, the internal diameter of described the first fastening piece, the second fastening piece and the 3rd fastening piece equals the external diameter of outer connecting pipe.
3. connection valve according to claim 1, is characterized in that: the internal diameter of described the first seal ring equals the internal diameter of outer connecting pipe, and the internal diameter of described the second seal ring equals the external diameter of outer connecting pipe.
4. connection valve according to claim 1, is characterized in that: the length of described the first bite and the second bite is 0.1～5mm.
5. connection valve according to claim 1, is characterized in that: described gland outer surface is integrally formed with protection boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284123.8U CN203857156U (en) | 2014-04-01 | 2014-05-29 | Connection valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154373.X | 2014-04-01 | ||
| CN201420154373 | 2014-04-01 | ||
| CN201420284123.8U CN203857156U (en) | 2014-04-01 | 2014-05-29 | Connection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203857156U true CN203857156U (en) | 2014-10-01 |
Family
ID=51607004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284123.8U Expired - Fee Related CN203857156U (en) | 2014-04-01 | 2014-05-29 | Connection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203857156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006084A (en) * | 2019-12-09 | 2020-04-14 | 徐州华正铸业有限公司 | Ball-milling cast iron pipe fitting |
-
2014
- 2014-05-29 CN CN201420284123.8U patent/CN203857156U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006084A (en) * | 2019-12-09 | 2020-04-14 | 徐州华正铸业有限公司 | Ball-milling cast iron pipe fitting |
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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: 20141001 Termination date: 20150529 |
|
| EXPY | Termination of patent right or utility model |