CN214946702U - Small-bore gate valve - Google Patents
Small-bore gate valve Download PDFInfo
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- CN214946702U CN214946702U CN202121351852.7U CN202121351852U CN214946702U CN 214946702 U CN214946702 U CN 214946702U CN 202121351852 U CN202121351852 U CN 202121351852U CN 214946702 U CN214946702 U CN 214946702U
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Abstract
The utility model discloses a small-bore gate valve. A small-bore gate valve comprises a small-bore gate valve body, 2 sets of sealing rings and flat gaskets, wherein a pipeline section A and a pipeline section B are respectively connected with a locking, fixing and sealing connecting device at the water inlet end and the water outlet end of the small-bore gate valve body; the locking, fixing and sealing connection device for the pipeline section A and the pipeline section B and the water inlet end and the water outlet end of the small-caliber gate valve body respectively comprises 2 opening locking toothed rings and 2 hexagonal locking nuts, annular inverted teeth are sequentially arranged on the inner surface of the opening locking toothed ring with the vertical section line being a parallel line, and each hexagonal locking nut is provided with a threaded connection installation section fixedly connected with the water inlet end or the water outlet end of the small-caliber gate valve body and a pushing and extruding section for pushing and extruding the opening locking toothed ring. The direct fixed sealing connection with metal pipelines or aluminum plastic pipes and PVC pipes is realized, the application range is expanded, and the pipeline installation and connection efficiency is improved.
Description
Technical Field
The utility model belongs to a gate valve especially belongs to a small-bore gate valve.
Background
The small-caliber gate valve is generally a gate valve with the nominal diameter DN being less than or equal to 50 mm, is widely applied to the installation and connection of the steel pipe pipeline, and is generally connected with the steel pipe pipeline by threads. When the small-caliber gate valve is installed and connected with a steel pipe pipeline, the steel pipe needs to be subjected to thread machining, the installation process is complicated, the installation efficiency is low, the cost is high, once thread damage occurs, the leakage of a threaded connection part can be caused, the steel pipe or the small-caliber gate valve needs to be replaced, and the maintenance is not convenient; meanwhile, the threaded installation and connection of the small-caliber gate valve and the steel pipe are only suitable for some metal pipes and are not suitable for threaded connection with aluminum plastic pipes, PVC pipes or other organic material pipes. How to realize the direct fixed sealing connection of small-bore gate valve and metal pipeline or plastic-aluminum pipe, PVC pipe, enlarge the application range that small-bore gate valve installation connecting tube used, improve the small-bore gate valve and pipeline fixed sealing connection efficiency is the problem that needs to solve.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a small-bore gate valve is provided. The small-caliber gate valve can be directly and fixedly connected with a metal pipeline or an aluminum-plastic pipe and a PVC pipe in a sealing manner, the application range of the small-caliber gate valve for installing and connecting pipelines is expanded, and the installation and connection efficiency of the small-caliber gate valve and the pipelines is improved.
The utility model provides a technical scheme of above-mentioned technical problem is: the utility model provides a small-bore gate valve, includes small-bore gate valve body, and small-bore gate valve body has into water end, play water end, still includes A pipeline section, B pipeline section, 2 sets of sealing washer, plain washer, characterized by: the locking, fixing and sealing connecting device is respectively connected with the pipeline section A and the pipeline section B and the water inlet end and the water outlet end of the small-caliber gate valve body;
the locking, fixing and sealing connecting device for the pipeline section A and the pipeline section B respectively connected with the water inlet end and the water outlet end of the small-caliber gate valve body comprises 2 opening locking toothed rings and 2 hexagonal locking nuts, wherein the vertical section line of the outer surface of each opening locking toothed ring is an inclined line, the inclination angle of each inclined line is 9-10 degrees, the vertical section line of the inner surface of each opening locking toothed ring is a parallel line, annular inverted teeth are sequentially arranged on the inner surface of each opening locking toothed ring, and the opening locking toothed rings and the annular inverted teeth sequentially arranged on the inner surface of each opening locking toothed ring are integrally formed;
the hexagonal locking nut is provided with a threaded connection installation section fixedly connected with the water inlet end or the water outlet end of the small-caliber gate valve body and a pushing and extruding section for pushing and extruding the opening locking toothed ring, internal threads arranged on the threaded connection installation section fixedly connected with the water inlet end or the water outlet end of the small-caliber gate valve body and arranged on the outer surface of the water inlet end or the water outlet end of the small-caliber gate valve body are matched with external threads arranged on the outer surface of the water inlet end or the water outlet end of the small-caliber gate valve body, a vertical section line on the inner surface of the pushing and extruding section for pushing and extruding the opening locking toothed ring is an inclined line, and the inclined angle of the vertical section inclined line on the inner surface of the pushing and extruding section for pushing and extruding the opening locking toothed ring is consistent with the inclined angle of the vertical section inclined line on the outer surface of the opening locking toothed ring;
in an initial state, 2 sets of sealing rings and flat washers are respectively and sequentially installed on the inner wall of a cavity body of the small-caliber gate valve body, which is positioned at the water inlet end and the water outlet end, 2 hexagonal locking nuts are respectively and sequentially in threaded loose connection with the water inlet end and the water outlet end of the small-caliber gate valve body through threaded connection installation sections, and 2 hexagonal locking nuts which are in threaded loose connection with the water inlet end and the water outlet end of the small-caliber gate valve body push extrusion sections for extruding the opening locking toothed ring to respectively and loosely sleeve the opening locking toothed ring.
When the end part of the pipeline section A and the end part of the pipeline section B are respectively and sequentially passed, the utility model discloses the pushing extrusion section that 2 hexagonal locking nuts under the initial state push and extrude the opening locking toothed ring is respectively loosely sleeved with the opening locking toothed ring, the flat washer and the sealing ring and is positioned in the cavity of the water inlet end and the water outlet end, the rotary fastening respectively uses the 2 hexagonal locking nuts of which the threaded connection installation section is sequentially loosely connected with the water inlet end and the water outlet end of the small-caliber gate valve body to do axial displacement to the central line of the small-caliber gate valve body, the 2 hexagonal locking nuts simultaneously push and extrude the pushing extrusion section of the opening locking toothed ring to push and extrude the opening locking toothed ring to do axial displacement to the central line of the small-caliber gate valve body, thereby realizing that the end part of the pipeline section A, the end part of the pipeline section B and the small-caliber gate valve body are positioned at the water inlet end, The flat gasket and the sealing ring in the cavity of the water outlet end are extruded and sealed; simultaneously 2 hexagon lock nut promote the promotion extrusion section of extrusion opening locking ring gear to produce radial pressure to opening locking ring gear, and the annular pawl extrusion of opening locking ring gear internal surface embraces A pipeline section tip one end, B pipeline section one end tightly, provides A pipeline section tip one end, B pipeline section one end and embraces power and pull-out force tightly, realizes the fixed sealing connection to A pipeline section tip one end, B pipeline section one end.
The utility model has the advantages that: because the utility model is provided with the small-caliber gate valve body, the small-caliber gate valve body is provided with a water inlet end, a water outlet end, an A pipeline section, a B pipeline section, 2 sets of sealing rings and a flat gasket, and also comprises a locking, fixing and sealing connecting device for the A pipeline section and the B pipeline section and the water inlet end and the water outlet end of the small-caliber gate valve body respectively; the locking, fixing and sealing connecting device for the pipeline section A and the pipeline section B and the water inlet end and the water outlet end of the small-caliber gate valve body respectively comprises 2 opening locking toothed rings and 2 hexagonal locking nuts, and annular inverted teeth are sequentially arranged on the inner surface of the opening locking toothed ring, wherein the vertical section line of the opening locking toothed ring is a parallel line; the hexagonal locking nut is provided with a threaded connection installation section fixedly connected with the water inlet end or the water outlet end of the small-caliber gate valve body and a pushing and extruding section for pushing and extruding the opening locking toothed ring. The utility model discloses a with the direct fixed sealing connection of metal pipeline or plastic-aluminum pipe, PVC pipe, enlarged the application range that small-bore gate valve erection joint pipeline used, improved small-bore gate valve and pipeline erection joint efficiency.
Drawings
The present invention will be further explained with reference to the drawings and examples;
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an exploded view of the overall structure of the present invention;
FIG. 3 is a schematic structural view of the utility model in use;
in the drawings: 1. the gate valve comprises a small-caliber gate valve body, 11 parts of a water inlet end, 12 parts of a water outlet end, 2 parts of a pipeline A, 3 parts of a pipeline B, 4 parts of a sealing ring, 5 parts of a flat washer, 6 parts of an opening locking toothed ring, 7 parts of a hexagonal locking nut, 61 parts of annular inverted teeth, 71 parts of a threaded connection mounting section and 72 parts of a pushing and extruding section for pushing and extruding the opening locking toothed ring.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Example 1
As shown in fig. 1, fig. 2 and fig. 3, a small-bore gate valve comprises a small-bore gate valve body 1, wherein the small-bore gate valve body 1 has a water inlet end 11 and a water outlet end 12, and further comprises a pipeline section a 2, a pipeline section B3, a sealing ring set 4 and a flat gasket 5, and is characterized in that: the locking, fixing and sealing connecting device is respectively connected with the pipeline section A and the pipeline section B and the water inlet end and the water outlet end of the small-caliber gate valve body;
the locking, fixing and sealing connecting device for the pipeline section A and the pipeline section B respectively connected with the water inlet end and the water outlet end of the small-caliber gate valve body comprises 2 opening locking toothed rings 6 and 2 hexagonal locking nuts 7, wherein the vertical section line of the outer surface of each opening locking toothed ring 6 is an inclined line, the inclination angle of the inclined line is 9 degrees, the vertical section line of the inner surface of each opening locking toothed ring 6 is a parallel line, annular inverted teeth 61 are sequentially arranged on the inner surface of each opening locking toothed ring 6, and the opening locking toothed rings 6 and the annular inverted teeth 61 sequentially arranged on the inner surface of each opening locking toothed ring are integrally formed;
the hexagonal locking nut 7 is provided with a threaded connection installation section 71 fixedly connected with the water inlet end 11 or the water outlet end 12 of the small-caliber gate valve body and a pushing and extruding section 72 for pushing and extruding the opening locking toothed ring, internal threads arranged on the threaded connection installation section 71 fixedly connected with the water inlet end 11 or the water outlet end 12 of the small-caliber gate valve body and arranged on the outer surface of the water inlet end 11 or the water outlet end 12 of the small-caliber gate valve body are matched with external threads arranged on the outer surface of the water inlet end 11 or the water outlet end 12 of the small-caliber gate valve body, a vertical section line on the inner surface of the pushing and extruding section 72 for pushing and extruding the opening locking toothed ring is an inclined line, and the inclined angle of a vertical section inclined line on the inner surface of the pushing and extruding section 72 of the opening locking toothed ring pushed by the hexagonal locking nut is consistent with the inclined angle of a vertical section inclined line on the outer surface of the opening locking toothed ring 6;
in an initial state, 2 sets of sealing rings 4 and flat washers 5 are respectively and sequentially installed on the inner walls of cavities of the small-caliber gate valve body 1 positioned at the water inlet end 11 and the water outlet end 12, 2 hexagonal locking nuts 7 are respectively and sequentially in threaded loose connection with the water inlet end 11 and the water outlet end 12 of the small-caliber gate valve body by using threaded connection installation sections 71, and 2 hexagonal locking nuts in threaded loose connection with the water inlet end 11 and the water outlet end 12 of the small-caliber gate valve body push extrusion sections 72 for pushing and extruding the opening locking toothed ring are respectively and loosely sleeved with the opening locking toothed ring 6.
Example 2
As shown in fig. 1, fig. 2 and fig. 3, a small-bore gate valve comprises a small-bore gate valve body 1, wherein the small-bore gate valve body 1 has a water inlet end 11 and a water outlet end 12, and further comprises a pipeline section a 2, a pipeline section B3, a sealing ring set 4 and a flat gasket 5, and is characterized in that: the locking, fixing and sealing connecting device is respectively connected with the pipeline section A and the pipeline section B and the water inlet end and the water outlet end of the small-caliber gate valve body;
the locking, fixing and sealing connecting device for the pipeline section A and the pipeline section B respectively connected with the water inlet end and the water outlet end of the small-caliber gate valve body comprises 2 opening locking toothed rings 6 and 2 hexagonal locking nuts 7, wherein the vertical section line of the outer surface of each opening locking toothed ring 6 is an inclined line, the inclination angle of the inclined line is 10 degrees, the vertical section line of the inner surface of each opening locking toothed ring 6 is a parallel line, annular inverted teeth 61 are sequentially arranged on the inner surface of each opening locking toothed ring 6, and the opening locking toothed rings 6 and the annular inverted teeth 61 sequentially arranged on the inner surface of each opening locking toothed ring are integrally formed;
the hexagonal locking nut 7 is provided with a threaded connection installation section 71 fixedly connected with the water inlet end 11 or the water outlet end 12 of the small-caliber gate valve body and a pushing and extruding section 72 for pushing and extruding the opening locking toothed ring, internal threads arranged on the threaded connection installation section 71 fixedly connected with the water inlet end 11 or the water outlet end 12 of the small-caliber gate valve body and arranged on the outer surface of the water inlet end 11 or the water outlet end 12 of the small-caliber gate valve body are matched with external threads arranged on the outer surface of the water inlet end 11 or the water outlet end 12 of the small-caliber gate valve body, a vertical section line on the inner surface of the pushing and extruding section 72 for pushing and extruding the opening locking toothed ring is an inclined line, and the inclined angle of a vertical section inclined line on the inner surface of the pushing and extruding section 72 of the opening locking toothed ring pushed by the hexagonal locking nut is consistent with the inclined angle of a vertical section inclined line on the outer surface of the opening locking toothed ring 6;
in an initial state, 2 sets of sealing rings 4 and flat washers 5 are respectively and sequentially installed on the inner walls of cavities of the small-caliber gate valve body 1 positioned at the water inlet end 11 and the water outlet end 12, 2 hexagonal locking nuts 7 are respectively and sequentially in threaded loose connection with the water inlet end 11 and the water outlet end 12 of the small-caliber gate valve body by using threaded connection installation sections 71, and 2 hexagonal locking nuts in threaded loose connection with the water inlet end 11 and the water outlet end 12 of the small-caliber gate valve body push extrusion sections 72 for pushing and extruding the opening locking toothed ring are respectively and loosely sleeved with the opening locking toothed ring 6.
From the above description, those skilled in the art can make various changes and modifications without departing from the technical spirit of the present invention, and the present invention is within the protection scope of the present invention. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.
Claims (1)
1. The utility model provides a small-bore gate valve, includes small-bore gate valve body, and small-bore gate valve body has into water end, play water end, still includes A pipeline section, B pipeline section, 2 sets of sealing washer, plain washer, characterized by: the locking, fixing and sealing connecting device is respectively connected with the pipeline section A and the pipeline section B and the water inlet end and the water outlet end of the small-caliber gate valve body;
the locking, fixing and sealing connecting device for the pipeline section A and the pipeline section B respectively connected with the water inlet end and the water outlet end of the small-caliber gate valve body comprises 2 opening locking toothed rings and 2 hexagonal locking nuts, wherein the vertical section line of the outer surface of each opening locking toothed ring is an inclined line, the inclination angle of each inclined line is 9-10 degrees, the vertical section line of the inner surface of each opening locking toothed ring is a parallel line, annular inverted teeth are sequentially arranged on the inner surface of each opening locking toothed ring, and the opening locking toothed rings and the annular inverted teeth sequentially arranged on the inner surface of each opening locking toothed ring are integrally formed;
the hexagonal locking nut is provided with a threaded connection installation section fixedly connected with the water inlet end or the water outlet end of the small-caliber gate valve body and a pushing and extruding section for pushing and extruding the opening locking toothed ring, internal threads arranged on the threaded connection installation section fixedly connected with the water inlet end or the water outlet end of the small-caliber gate valve body and arranged on the outer surface of the water inlet end or the water outlet end of the small-caliber gate valve body are matched with external threads arranged on the outer surface of the water inlet end or the water outlet end of the small-caliber gate valve body, a vertical section line on the inner surface of the pushing and extruding section for pushing and extruding the opening locking toothed ring is an inclined line, and the inclined angle of the vertical section inclined line on the inner surface of the pushing and extruding section for pushing and extruding the opening locking toothed ring is consistent with the inclined angle of the vertical section inclined line on the outer surface of the opening locking toothed ring;
in an initial state, 2 sets of sealing rings and flat washers are respectively and sequentially installed on the inner wall of a cavity body of the small-caliber gate valve body, which is positioned at the water inlet end and the water outlet end, 2 hexagonal locking nuts are respectively and sequentially in threaded loose connection with the water inlet end and the water outlet end of the small-caliber gate valve body through threaded connection installation sections, and 2 hexagonal locking nuts which are in threaded loose connection with the water inlet end and the water outlet end of the small-caliber gate valve body push extrusion sections for extruding the opening locking toothed ring to respectively and loosely sleeve the opening locking toothed ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121351852.7U CN214946702U (en) | 2021-06-17 | 2021-06-17 | Small-bore gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121351852.7U CN214946702U (en) | 2021-06-17 | 2021-06-17 | Small-bore gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214946702U true CN214946702U (en) | 2021-11-30 |
Family
ID=79051668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121351852.7U Active CN214946702U (en) | 2021-06-17 | 2021-06-17 | Small-bore gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214946702U (en) |
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2021
- 2021-06-17 CN CN202121351852.7U patent/CN214946702U/en active Active
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