CN216520230U - Mechanical connecting device for connecting plastic pipe and groove pipe fitting - Google Patents
Mechanical connecting device for connecting plastic pipe and groove pipe fitting Download PDFInfo
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- CN216520230U CN216520230U CN202122882661.XU CN202122882661U CN216520230U CN 216520230 U CN216520230 U CN 216520230U CN 202122882661 U CN202122882661 U CN 202122882661U CN 216520230 U CN216520230 U CN 216520230U
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Abstract
The utility model discloses a mechanical connecting device for connecting a plastic pipe and a groove pipe fitting, which comprises two semi-annular shells, wherein two ends of each shell are respectively provided with a lug, the inner annular surface of each shell is provided with a sealing ring groove, and the two shells can be connected together through the end-to-end ends of bolts penetrating through the lugs; after the two shells are connected end to end, a central space for receiving a plastic pipe and a groove pipe fitting can be enclosed, and a sealing ring is arranged in a sealing ring groove after the two shells are connected end to end; the plastic pipe sealing device is characterized in that a convex rib used for being connected with a groove of the groove pipe fitting and a clamping mechanism capable of being embedded into the pipe wall of the plastic pipe are arranged on the inner ring surface of the shell, the convex rib is located on one side of the sealing ring groove, and the clamping mechanism is located on the other side of the sealing ring groove. The mechanical connecting device can quickly and simply realize the connection of the plastic pipe and the groove pipe fitting, and has high connection strength.
Description
Technical Field
The utility model relates to the connection of plastic pipelines, in particular to a mechanical connecting device for connecting a plastic pipe and a groove pipe fitting.
Background
At present, plastic pipe fittings and groove pipe fittings are widely used for pipelines; the plastic pipe fittings realize the connection between the plastic pipes, between the plastic pipes and the elbows, between the plastic pipes and the tee joints or the four-way joints and the like in a hot melting mode. The groove pipe fittings realize connection between pipelines with grooves, between the pipelines with grooves and elbows, tees or cross joints with the grooves in a clamping and buckling mode. But there is no better connection mode between the plastic pipe and the groove pipe fitting, which is a great limitation to the place where the groove pipe fitting and the plastic pipe fitting are used together for construction.
Disclosure of Invention
The present invention is directed to a mechanical connection device for connecting a plastic pipe and a grooved pipe, so as to enable a high-strength mechanical connection between the plastic pipe and the grooved pipe.
In order to solve the technical problem, the utility model provides a mechanical connecting device for connecting a plastic pipe and a groove pipe fitting, which comprises two semi-annular shells and is structurally characterized in that: the two ends of the shell are respectively provided with a lug, the inner ring surface of the shell is provided with a sealing ring groove, and the two shells can be connected together end to end through the lugs; the two shells can enclose a central space for receiving a plastic pipe and a groove pipe fitting after being connected end to end, and a sealing ring is arranged in a sealing ring groove after the two shells are connected end to end; the pipe fitting sealing device is characterized in that a convex rib used for being connected with a groove of the groove pipe fitting and a clamping mechanism capable of being embedded into the pipe wall of the plastic pipe are arranged on the inner ring surface of the shell, the convex rib is located on one side of the sealing ring groove, and the clamping mechanism is located on the other side of the sealing ring groove.
The clamping mechanism is a plurality of clamping teeth arranged on the inner ring surface of the shell, and the clamping teeth are arranged along the axial direction of the inner ring surface of the shell at intervals and extend along the circumferential direction of the inner ring surface of the shell.
The clamping mechanism is a clamping ring provided with an opening, a plurality of locking teeth are arranged on the inner ring surface of the clamping ring, and the locking teeth are arranged at intervals along the axial direction of the inner ring surface of the clamping ring and extend along the circumferential direction of the inner ring surface of the clamping ring; the inner ring surface of the shell is provided with a clamping ring groove, and the clamping ring is arranged in the clamping ring groove after the two shells are connected end to end.
The groove pipe fitting comprises a pipeline, an elbow, a tee joint, a four-way joint or a valve which is provided with a groove.
The mechanical connection device for connecting a plastic pipe to a grooved pipe is used in the following manner: the method comprises the following steps that two semi-annular shell rings are wrapped at the opposite ends of a plastic pipe and a groove pipe fitting to be connected, the plastic pipe and the groove pipe fitting can be firmly connected together by a clamping mechanism arranged on the shell along with the fastening of a bolt, namely, along with the fastening of the bolt, clamping teeth arranged on the shell or locking teeth arranged on a clamping ring arranged in a clamping ring groove can be embedded into the pipe wall of the plastic pipe, and a convex rib arranged on the shell can be tightly clamped into a groove of the groove pipe fitting, so that the high-strength mechanical connection of the plastic pipe and the groove pipe fitting is realized; the shell tightly clamps the plastic pipe and the groove pipe fitting and simultaneously presses the rubber ring to realize sealing.
The utility model can quickly and simply realize the connection between the plastic pipe and the groove pipe fitting. In addition, after the plastic pipe and the groove pipe are connected, the outer part of the connecting end of the plastic pipe and the groove pipe is equivalently provided with the sheath, so that the connecting strength is high.
Drawings
The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings:
FIG. 1 is a schematic representation of a first configuration of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic representation of a second configuration of the present invention;
FIG. 4 is a right side view of FIG. 3;
FIG. 5 is a schematic representation of a third configuration of the present invention;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a schematic representation of a fourth configuration of the present invention;
FIG. 8 is a right side view of FIG. 7;
FIG. 9 is a schematic structural view of a snap ring;
FIG. 10 is a left side view of FIG. 9;
FIG. 11 is an axial cross-sectional structural schematic of a seal ring of one construction;
FIG. 12 is an axial cross-sectional structural schematic view of a seal ring of another construction.
Detailed Description
Referring to fig. 1 and 2, the mechanical coupling device for coupling plastic pipes and grooved pipes of the first structure includes two housings having a semi-circular shape, which will be referred to as an upper housing 1 and a lower housing 2 for convenience of description, wherein the upper housing 1 and the lower housing 2 are provided at both ends thereof with lugs 3, and the upper housing 1 and the lower housing 2 are provided at inner circumferential surfaces thereof with gasket grooves 4. The upper and lower housings 1, 2 are connectable together end to end by bolts 15 passing through the lugs 3, as shown in figure 2. The upper shell 1 and the lower shell 2 can enclose a central space 5 for receiving a plastic pipe after being connected end to end, and a sealing ring 6 is arranged in a sealing ring groove after the upper shell 1 and the lower shell 2 are connected end to end; structure of seal ring 6 referring to fig. 11, the seal ring 6 includes a rubber ring body 61, two ends of the rubber ring body 61 are respectively provided with an end wall 62 which is connected with the rubber ring body 1 into a whole and is provided with an axial through hole 65 at the central part, and the inner edge of the end wall 62 is protruded inwards in the axial direction to form a ring lip 63. Referring to fig. 1 and 2, a convex rib 13 for connecting with a groove of a groove pipe fitting 14 and a clamping mechanism capable of being embedded into a pipe wall of a plastic pipe 8 are arranged on the inner annular surface of the upper shell 1, the convex rib 13 is positioned on one side of the sealing ring groove 4, and the clamping mechanism is positioned on the other side of the sealing ring groove 4; the inner ring surface of the lower shell 1 is also provided with a convex rib 13 for connecting with the groove of the groove pipe fitting 14 and a clamping mechanism which can be embedded into the pipe wall of the plastic pipe 8. A plurality of clamping teeth 7 are arranged on the other side (relative to the convex rib 13) of the sealing ring groove 4 on the inner annular surface of the upper shell 1, and the clamping teeth 7 of the upper shell 1 are arranged at intervals along the axial direction of the inner annular surface of the upper shell 1 and extend along the circumferential direction of the inner annular surface of the upper shell 1; a plurality of clamping teeth 7 are also arranged on the other side (relative to the convex rib 13) of the sealing ring groove 4 on the inner annular surface of the lower shell 2, and the clamping teeth 7 of the lower shell 2 are arranged at intervals along the axial direction of the inner annular surface of the lower shell 2 and extend along the circumferential direction of the inner annular surface of the lower shell 2; the clamping teeth 7 are clamping mechanisms. Referring to fig. 1 and 2, by fastening the bolt 15 passing through the lug 3, the clamping teeth 7 of the upper and lower shells 1 and 2 can be driven to be embedded into the pipe wall of the plastic pipe 8 and the convex ribs 13 of the shells 1 and 2 can be driven to be clamped into the grooves of the grooved pipe fitting 14, so that the mechanical connection of the plastic pipe and the grooved pipe fitting is realized; the upper shell 1 and the lower shell 2 realize the connection between the plastic pipe and the groove pipe fitting through the clamping teeth 7 and the convex ribs 13, and meanwhile, the sealing ring 6 is also pressed to enable the ring lip 63 to cling to the outer peripheral surfaces of the plastic pipe and the groove pipe fitting, so that the connection part between the plastic pipe and the groove pipe fitting is sealed.
Referring to fig. 3 and 4, the second structure of the present invention, the mechanical connection device for connecting a plastic pipe and a grooved pipe fitting is substantially the same as the mechanical connection device for connecting a plastic pipe and a grooved pipe fitting of the first structure, and also includes two semi-annular housings, i.e., an upper housing 1 and a lower housing 2, wherein two ends of the upper housing 1 and the lower housing 2 are respectively provided with a lug 3, and inner annular surfaces of the upper housing 1 and the lower housing 2 are respectively provided with a sealing ring groove 4; the upper shell 1 and the lower shell 2 can be connected together end to end through bolts 15 penetrating through the lugs 3, and a sealing ring 6 is arranged in the sealing ring groove after the upper shell 1 and the lower shell 2 are connected end to end; the upper housing 1 and the lower housing 2 are also provided with a rib 13 on each side of the sealing ring groove 4. The difference lies in that the upper shell 1 and the lower shell 2 have different clamping mechanisms on the other side (relative to the convex rib 13) of the sealing ring groove 4; the mechanical connecting device for connecting the plastic pipe and the groove pipe fitting in the first structure is characterized in that clamping teeth 7 serving as clamping mechanisms are directly arranged on the inner annular surfaces of the upper shell 1 and the lower shell 2; the second type of mechanical coupling device for coupling plastic pipes to grooved pipes, which serves as a clamping mechanism, is a snap ring 10. Referring to fig. 3 in conjunction with fig. 9 and 10, the structure of the snap ring 10 and the connection relationship between the snap ring 10 and the upper housing 1 and the lower housing 2 will be described, wherein the snap ring 10 is provided with an opening 9, the inner annular surface of the snap ring is provided with a plurality of locking teeth 11, and the locking teeth 11 are arranged at intervals along the axial direction of the inner annular surface of the snap ring 10 and extend along the circumferential direction of the inner annular surface of the snap ring 10; a clamping ring groove 12 is formed in the inner annular surface of the upper shell 1 on the other side (relative to the convex rib 13) of the sealing ring groove, and a clamping ring groove 12 is also formed in the inner annular surface of the lower shell 2 on the other side (relative to the convex rib 13) of the sealing ring groove; after the upper shell 1 and the lower shell 2 are connected end to end through bolts, the snap ring 10 is arranged in the snap ring groove 12. With reference to fig. 3 and 4, the upper and lower shells 1 and 2 can be driven progressively closer by tightening the bolts 15 through said lugs 3; in the process that the upper shell 1 and the lower shell 2 gradually approach to each other, the snap ring 10 gradually draws in and finally enables the locking teeth 11 on the snap ring 10 to be embedded into the pipe wall of the plastic pipe 8, the convex ribs 13 are also gradually clamped into the groove of the groove pipe fitting 14 and finally tightly clamp the groove pipe fitting, so that the mechanical connection between the plastic pipe and the groove pipe fitting is realized, meanwhile, the upper shell 1 and the lower shell 2 also press the seal ring 6 to enable the ring lip 63 to be tightly attached to the outer peripheral surfaces of the plastic pipe and the groove pipe fitting, and the sealing of the connection part between the plastic pipe and the groove pipe fitting is realized.
A third construction of the present invention, referring to fig. 5 and 6, the mechanical coupling device for coupling a plastic pipe and a grooved pipe of the third construction is substantially the same as the mechanical coupling device for coupling a plastic pipe and a grooved pipe of the first construction, except that: the structure of the sealing ring 6 is slightly different; referring to fig. 12, the sealing ring 6 of the mechanical connecting device for connecting a plastic pipe and a groove pipe fitting in the third structure includes a rubber ring body 61, end walls 62 that are connected with the rubber ring body 1 into a whole and have axial through holes at the central portion are respectively provided at both ends of the rubber ring body 61, the inner edges of the end walls 62 are axially inwardly protruded to form ring lips 63, and includes the rubber ring body 61, the end walls 62 that are connected with the rubber ring body 1 into a whole and have axial through holes 65 at the central portion are respectively provided at both ends of the rubber ring body 61, the inner edges of the end walls 62 are axially inwardly protruded to form ring lips 63, the inner ring surface of the rubber ring body 61 is locally radially inwardly protruded to form positioning ring pieces 64, and the positioning ring pieces 64 are located between the two ring lips 63. That is, the third structure of the present invention can be obtained by replacing the seal ring of the mechanical coupling device for coupling a plastic pipe and a grooved pipe member of the first structure, i.e., the seal ring of fig. 11, with the seal ring of fig. 12.
Fourth construction of the utility model with reference to fig. 7 and 8, the fourth construction of the utility model can be obtained by replacing the sealing ring of the mechanical connection device of the second construction for connecting the plastic pipe to the grooved pipe, i.e. the sealing ring of fig. 11, with the sealing ring of fig. 12.
Adopt when this neotype first structure is connected plastic tubing and slot pipe fitting, need to separate earlier with casing 1 and casing 2 and be about to pass the bolt of lug and pull down, overlap the tip at the plastic tubing earlier with the sealing washer, slot pipe fitting tip is relative back with the tip of plastic tubing, remove the sealing washer again and make it stride overlap on the link of plastic tubing and slot pipe fitting, then clamp casing 1 and casing 2 down on the sealing washer, go up casing 1 and casing 2 down with the bolt-up at last, the state after the connection is as shown in fig. 1.
Adopt when this neotype second kind of structure is connected plastic tubing and slot pipe fitting, need to separate earlier the bolt that will pass the lug with casing 1 and casing 2 down and pull down, earlier snap ring and sealing washer cover at the tip of plastic tubing, with the relative back of slot pipe fitting and the tip of plastic tubing, remove the sealing washer again and make it stride the cover on the link of plastic tubing and slot pipe fitting, then clamp casing 1 and casing 2 down on sealing washer and snap ring, go up casing 1 and casing 2 down with the bolt-up at last, the state after the connection is as shown in fig. 3.
Adopt when this neotype third kind of structure and fourth kind of structure are connected plastic tubing and slot pipe fitting, need not pull down connecting bolt and make casing 1 and casing 2 separation down, insert the sealing washer with the plastic tubing tip and make this tip top lean on a side at the position ring piece 64 of sealing washer, insert the sealing washer with slot pipe fitting tip again and make this tip top lean on the another side at the position ring piece 64 of sealing washer, then fastening bolt can realize the connection of two plastic tubings. The third structure of the present invention is shown in fig. 5 in a state of connecting the plastic pipe and the grooved pipe, and the fourth structure of the present invention is shown in fig. 7 in a state of connecting the plastic pipe and the grooved pipe.
The grooved pipes shown in fig. 1, 3, 5 and 7 are pipes provided with grooves, but it is of course possible to replace the pipes provided with grooves with grooved pipe parts such as elbows, tees, four-way joints or valves.
The first structure and the second structure of the novel structure are used as common connecting devices because the upper shell 1 and the lower shell 2 need to be separated when the pipeline is connected; this neotype third kind structure and fourth kind structure need not to separate casing 1 and casing 2 down, can realize the high-speed joint of pipeline, consequently can regard as high-speed joint device.
Claims (4)
1. The utility model provides a connect mechanical connecting device of plastic tubing and slot pipe fitting, includes two casings that are the hemicycle, its characterized in that: the two ends of the shell are respectively provided with a lug, the inner ring surface of the shell is provided with a sealing ring groove, and the two shells can be connected together end to end through the lugs; the two shells can enclose a central space for receiving a plastic pipe and a groove pipe fitting after being connected end to end, and a sealing ring is arranged in a sealing ring groove after the two shells are connected end to end; the pipe fitting sealing device is characterized in that a convex rib used for being connected with a groove of the groove pipe fitting and a clamping mechanism capable of being embedded into the pipe wall of the plastic pipe are arranged on the inner ring surface of the shell, the convex rib is located on one side of the sealing ring groove, and the clamping mechanism is located on the other side of the sealing ring groove.
2. A mechanical coupling device for connecting plastic pipes to grooved pipes according to claim 1, characterized in that: the clamping mechanism is a plurality of clamping teeth arranged on the inner ring surface of the shell, and the clamping teeth are arranged along the axial direction of the inner ring surface of the shell at intervals and extend along the circumferential direction of the inner ring surface of the shell.
3. A mechanical coupling device for connecting plastic pipes to grooved pipes according to claim 1, characterized in that: the clamping mechanism is a clamping ring provided with an opening, a plurality of locking teeth are arranged on the inner ring surface of the clamping ring, and the locking teeth are arranged at intervals along the axial direction of the inner ring surface of the clamping ring and extend along the circumferential direction of the inner ring surface of the clamping ring; the inner ring surface of the shell is provided with a clamping ring groove, and the clamping ring is arranged in the clamping ring groove after the two shells are connected end to end.
4. A mechanical connection of a plastic pipe to a grooved pipe according to claim 1, 2 or 3 characterized in that: the groove pipe fitting comprises a pipeline, an elbow, a tee joint, a four-way joint or a valve which is provided with a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122882661.XU CN216520230U (en) | 2021-11-23 | 2021-11-23 | Mechanical connecting device for connecting plastic pipe and groove pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122882661.XU CN216520230U (en) | 2021-11-23 | 2021-11-23 | Mechanical connecting device for connecting plastic pipe and groove pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216520230U true CN216520230U (en) | 2022-05-13 |
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ID=81533630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122882661.XU Active CN216520230U (en) | 2021-11-23 | 2021-11-23 | Mechanical connecting device for connecting plastic pipe and groove pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216520230U (en) |
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2021
- 2021-11-23 CN CN202122882661.XU patent/CN216520230U/en active Active
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