CN215371376U - MPP double-walled bellows - Google Patents
MPP double-walled bellows Download PDFInfo
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- CN215371376U CN215371376U CN202121614190.8U CN202121614190U CN215371376U CN 215371376 U CN215371376 U CN 215371376U CN 202121614190 U CN202121614190 U CN 202121614190U CN 215371376 U CN215371376 U CN 215371376U
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- corrugated pipe
- sleeve
- groove
- corrugated
- clamped
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Abstract
The utility model discloses an MPP double-wall corrugated pipe which comprises a corrugated pipe body, wherein the corrugated pipe body comprises a straight pipe layer, a threaded pipe layer is arranged outside the straight pipe layer, one end of the straight pipe layer is of a concave structure, the other end of the straight pipe layer is of a convex structure, and the corrugated pipe body is integrally provided with convex blocks at intervals in the circumferential direction at one end of the convex structure; a clamping groove is axially formed in one end of the concave structure of the corrugated pipe body; the clamping groove is clamped with the lug; a ring groove is circumferentially formed at one end of the concave structure of the corrugated pipe body; the lug and the clamping groove of the adjacent corrugated pipe body are clamped, and after the two corrugated pipes are installed, the rigidity of the joint is ensured, and the two corrugated pipes are prevented from falling off after being installed; meanwhile, the sealing performance after the connection is ensured.
Description
Technical Field
The utility model relates to an MPP double-wall corrugated pipe, and belongs to the technical field of sleeves.
Background
The modified polyvinyl chloride (MPP) double-wall corrugated pipe is a novel plastic pipe with a double-wall corrugated structure, which is manufactured by taking polypropylene as a main material, blending and modifying as main materials and adopting a special compound reinforced and modified formula and a processing technology through advanced extrusion; has a series of advantages of novel structure, high strength, good temperature resistance, simple and convenient construction, cost saving and the like; the MPP double-wall corrugated pipe is mainly applied to urban and rural bright cable duct-digging engineering for high-voltage transmission lines and cables above 10KV, the common type is suitable for being laid under green belts, and the standard type is suitable for being laid on slow lanes; at present, the conventional double-wall corrugated pipe in the market has poor connection sealing performance and is easy to fall off after installation, thereby greatly influencing the use effect.
Disclosure of Invention
In order to solve the problems, the utility model provides an MPP double-wall corrugated pipe, which ensures the rigidity of a joint after being installed and avoids two corrugated pipes falling off after being installed; meanwhile, the sealing performance after the connection is ensured.
The MPP double-wall corrugated pipe comprises a corrugated pipe body, wherein the corrugated pipe body comprises a straight pipe layer, a screwed pipe layer is arranged outside the straight pipe layer, one end of the straight pipe layer is of a concave structure, the other end of the straight pipe layer is of a convex structure, and the corrugated pipe body is integrally provided with bumps at intervals in the circumferential direction at one end of the convex structure; a clamping groove is axially formed in one end of the concave structure of the corrugated pipe body; the clamping groove is clamped with the lug; a ring groove is circumferentially formed at one end of the concave structure of the corrugated pipe body; the convex blocks and the clamping grooves of the adjacent corrugated pipe bodies are clamped and clamped through positioning clamping rings; the positioning snap ring is arranged on the inner side of the annular groove; a reinforcing sleeve is arranged outside the connecting side of the adjacent corrugated pipe bodies; the reinforcing sleeve comprises an upper groove sleeve and a lower groove sleeve; the inner sides of the upper groove sleeve and the lower groove sleeve are provided with pressing grooves clamped with corrugated sections of the corrugated pipe body; the upper groove sleeve and the lower groove sleeve are fixed through bolts and nuts.
When the corrugated pipe is installed, the two adjacent corrugated pipes are mutually embedded through the concave structure and the convex structure, the lug is embedded into the clamping groove, and the lug and the clamping groove are clamped through the positioning clamping ring and the annular groove after being installed, so that the lug is limited by the positioning clamping ring, the lug is prevented from being separated from the clamping groove, and the two corrugated pipes are prevented from falling off after being installed; and finally, carrying out external coating and structural reinforcement by using a reinforcing sleeve.
Furthermore, at least two pressure grooves are arranged on the inner sides of the upper groove sleeve and the lower groove sleeve; the two pressing grooves are respectively clamped with the end corrugated sections of the adjacent corrugated pipe bodies; because go up the groove cover and all with its tip ripple festival block of bellows body with lower groove cover, consequently, can be as an organic whole with two bellows body installations, guarantee the stability of joint department.
Further, a rubber layer is arranged on one surface, close to each other, of the upper groove sleeve and the lower groove sleeve; the rubber layers are pressed and fixed with each other, so that the whole reinforcing sleeve and the corrugated pipe body are integrally fixed, and the sealing performance of the installation position is ensured.
Furthermore, a glue injection port is formed in the reinforcing sleeve; the reinforcing sleeve is pumped into the adhesive body through the adhesive injection port, and after the reinforcing sleeve is installed, the hot adhesive body is pumped into the adhesive injection port; the hot glue is injected into the reinforcing sleeve and the corrugated pipe body by utilizing the fluidity of the overheated glue, so that the corrugated pipe body and the reinforcing sleeve are integrated.
Compared with the prior art, the MPP double-wall corrugated pipe has the advantages that after the two corrugated pipes are installed, the rigidity of the joint is ensured, and the two corrugated pipes are prevented from falling off after being installed; meanwhile, the sealing performance after the connection is ensured.
Drawings
Fig. 1 is a schematic end structure diagram of embodiment 1 of the present invention.
FIG. 2 is a schematic view of a concave structure of a bellows body according to the present invention.
Detailed Description
Example 1:
the MPP double-wall corrugated pipe shown in fig. 1 and 2 includes a corrugated pipe body 1, the corrugated pipe body 1 includes a straight pipe layer 2, a threaded pipe layer 3 is disposed outside the straight pipe layer 2, one end of the straight pipe layer 2 is a concave structure 21, the other end is a convex structure 22, and the corrugated pipe body 1 is integrally formed with a projection 221 at one end of the convex structure 22 at intervals in the circumferential direction; a clamping groove 211 is axially formed at one end of the concave structure of the corrugated pipe body 1; the clamping groove 211 is clamped with the projection 221; a ring groove 212 is circumferentially arranged at one end of the concave structure of the corrugated pipe body 1; the convex block 221 and the clamping groove 211 of the adjacent corrugated pipe body 1 are clamped and clamped through a positioning clamping ring 4; the positioning snap ring 4 is arranged inside the ring groove 212; a reinforcing sleeve 5 is arranged outside the connecting side of the adjacent corrugated pipe bodies 1; the reinforcing sleeve 5 comprises an upper groove sleeve 51 and a lower groove sleeve 52; the inner sides of the upper groove sleeve 51 and the lower groove sleeve 52 are provided with pressing grooves 53 which are clamped with corrugated sections of the corrugated pipe body; the upper groove sleeve 51 and the lower groove sleeve 52 are fixed through bolts and nuts; when the corrugated pipe is installed, the two adjacent corrugated pipes are mutually embedded through the concave structure and the convex structure, the lug is embedded into the clamping groove, and the lug and the clamping groove are clamped through the positioning clamping ring and the annular groove after being installed, so that the lug is limited by the positioning clamping ring, the lug is prevented from being separated from the clamping groove, and the two corrugated pipes are prevented from falling off after being installed; and finally, carrying out external coating and structural reinforcement by using a reinforcing sleeve.
Wherein, the inner sides of the upper groove sleeve 51 and the lower groove sleeve 52 are respectively provided with at least two pressure grooves 53; the two pressing grooves 53 are respectively clamped with the end corrugated joints of the adjacent corrugated pipe bodies 1; because the upper groove sleeve 51 and the lower groove sleeve 52 are clamped with the corrugated pipe body 1 at the end part corrugated joint, the two corrugated pipe bodies can be integrally installed, and the stability of the joint is ensured.
In another embodiment, a rubber layer 54 is disposed on a side of the upper groove cover 51 close to the lower groove cover 52; the rubber layers 54 are pressed and fixed with each other, so that the whole reinforcing sleeve and the corrugated pipe body are integrally fixed, and the sealing performance of the installation position is ensured.
In another embodiment, the reinforcing sleeve 5 is provided with a glue injection port 55; the reinforcing sleeve 5 is pumped with adhesive through the adhesive injection port, and after the reinforcing sleeve is installed, hot adhesive is pumped into the adhesive injection port; the hot glue is injected into the reinforcing sleeve and the corrugated pipe body by utilizing the fluidity of the overheated glue, so that the corrugated pipe body and the reinforcing sleeve are integrated.
The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.
Claims (4)
1. The utility model provides a MPP double-walled bellows, includes the bellows body, the bellows body includes the straight tube layer, the straight tube layer outside is provided with screwed pipe layer, its characterized in that: one end of the straight pipe layer is of a concave structure, the other end of the straight pipe layer is of a convex structure, and the corrugated pipe body is integrally provided with lugs at intervals in the circumferential direction at one end of the convex structure; a clamping groove is axially formed in one end of the concave structure of the corrugated pipe body; the clamping groove is clamped with the lug; a ring groove is circumferentially formed at one end of the concave structure of the corrugated pipe body; the convex blocks and the clamping grooves of the adjacent corrugated pipe bodies are clamped and clamped through positioning clamping rings; the positioning snap ring is arranged on the inner side of the annular groove; a reinforcing sleeve is arranged outside the connecting side of the adjacent corrugated pipe bodies; the reinforcing sleeve comprises an upper groove sleeve and a lower groove sleeve; the inner sides of the upper groove sleeve and the lower groove sleeve are provided with pressing grooves clamped with corrugated sections of the corrugated pipe body; the upper groove sleeve and the lower groove sleeve are fixed through bolts and nuts.
2. The MPP double wall bellows of claim 1, wherein at least two indent are provided inside each of the upper and lower groves; and the two pressing grooves are respectively clamped with the end corrugated sections of the adjacent corrugated pipe bodies.
3. The MPP double wall bellows of claim 1, wherein a rubber layer is disposed on a side of the upper and lower groves adjacent to each other; the rubber layers are pressed and fixed with each other.
4. The MPP double wall corrugated pipe of claim 1, wherein the stiffener sleeve is provided with a glue injection port; and the reinforcing sleeve is pumped into the viscose body through the glue injection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121614190.8U CN215371376U (en) | 2021-07-16 | 2021-07-16 | MPP double-walled bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121614190.8U CN215371376U (en) | 2021-07-16 | 2021-07-16 | MPP double-walled bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215371376U true CN215371376U (en) | 2021-12-31 |
Family
ID=79609500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121614190.8U Active CN215371376U (en) | 2021-07-16 | 2021-07-16 | MPP double-walled bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215371376U (en) |
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2021
- 2021-07-16 CN CN202121614190.8U patent/CN215371376U/en active Active
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