阅读说明：本技术 一种预应力混凝土用抗压型波纹管 (Compression-resistant corrugated pipe for prestressed concrete ) 是由 叶林杰 夏新华 吴迪高 谢纯辉 杨湘刚 郑集 于 2021-08-31 设计创作，主要内容包括：本发明提供了一种预应力混凝土用抗压型波纹管,包括波纹管体,波纹管体的两端上分别设置有用于将相邻波纹管接在一起的承接装置、插头装置,承接装置包括设置于波纹管体端部上的接头,接头背离波纹管体的端面上开设有插口,插口的内壁上开设有若干密封卡槽,插头装置包括设置于波纹管体远离接头的一端且与用于与插口插接配合的插头,插头的外侧壁上开设有若干与密封卡槽对齐的环槽,环槽中嵌设有密封卡圈,插头中设置有用于将密封卡圈向外扩开并部分嵌入密封卡槽中的扩圈机构。本预应力混凝土用抗压型波纹管通过在波纹管体两端上设置有能够快速连接的承接装置和插头装置,解决了现有技术中存在的安装速度慢、密封性差的问题。(The invention provides a compression-resistant corrugated pipe for prestressed concrete, which comprises a corrugated pipe body, wherein two ends of the corrugated pipe body are respectively provided with a bearing device and a plug device, the bearing device and the plug device are used for connecting adjacent corrugated pipes together, the bearing device comprises a joint arranged on the end part of the corrugated pipe body, a socket is arranged on the end surface of the joint, which is far away from the corrugated pipe body, the inner wall of the socket is provided with a plurality of sealing clamping grooves, the plug device comprises a plug which is arranged at one end of the corrugated pipe body, which is far away from the joint, and is in plug fit with the socket, the outer side wall of the plug is provided with a plurality of annular grooves which are aligned with the sealing clamping grooves, sealing clamping rings are embedded in the annular grooves, and a ring expanding mechanism which is used for expanding the sealing clamping rings outwards and partially embedding the sealing clamping rings into the sealing clamping grooves is arranged in the plug. This compression-resistant corrugated pipe for prestressed concrete is through being provided with the receiving device and the plug device that can the high-speed joint on bellows body both ends, has solved the slow, poor problem of leakproofness of installation rate that exists among the prior art.)

1. The utility model provides a compressive type bellows for prestressed concrete, includes bellows body (1), its characterized in that: two ends of the corrugated pipe body (1) are respectively provided with a bearing device (2) and a plug device (3) which are used for connecting adjacent corrugated pipes together, the bearing device (2) comprises a joint (4) arranged on the end part of the corrugated pipe body (1), the end surface of the joint (4) departing from the corrugated pipe body (1) is provided with a socket (7), a plurality of sealing clamping grooves (8) are arranged on the inner wall of the socket (7), the plug device (3) comprises a plug (10) which is arranged at one end of the corrugated pipe body (1) far away from the joint (4) and is in plug-in fit with the socket (7), the outer side wall of the plug (10) is provided with a plurality of ring grooves (19) aligned with the sealing clamping grooves (8), the plug is characterized in that a sealing clamping ring (24) is embedded in the annular groove (19), and a ring expanding mechanism which is used for expanding the sealing clamping ring (24) outwards and partially embedding the sealing clamping groove (8) is arranged in the plug (10).

2. The pressure-resistant corrugated pipe for prestressed concrete according to claim 1, wherein: seted up a plurality of slide openings (20) on the diapire of annular (19), expand circle mechanism including slide set up in slide opening (20) and be arranged in promoting sealed rand (24) slider (25) that outwards strut, set up in plug (10) and be used for controlling slider (25) the reciprocating control block subassembly that slides in slide opening (20).

3. The pressure-resistant corrugated pipe for prestressed concrete according to claim 2, wherein: guiding hole (21), mounting groove (22) have been seted up in proper order on the terminal surface that plug (10) deviates from bellows body (1), mounting groove (22) and slide opening (20) intercommunication, the control block subassembly sets up including sliding in guiding hole (21) and inserts push rod (28), the one end of mounting groove (22) and is articulated with push rod (28), and the other end is articulated connecting rod (29) with slider (25), push rod (28) and the pin joint of connecting rod (29) are located one side that bellows body (1) was kept away from to the pin joint of slider (25) and connecting rod (29).

4. The pressure-resistant corrugated pipe for prestressed concrete according to claim 3, wherein: the corrugated pipe body is characterized in that a spring groove (23) is formed in the groove wall, close to the corrugated pipe body (1), of the mounting groove (22), a stress disc (32) which is inserted into the spring groove (23) and is in sliding fit with the spring groove (23) is arranged at one end, close to the corrugated pipe body (1), of the push rod (28), and a reset spring (33) which is used for pushing the stress disc (32) and the push rod (28) to reset is arranged in the spring groove (23).

5. The pressure-resistant corrugated pipe for prestressed concrete according to claim 2, wherein: every slider (25) are provided with on being close to the terminal surface of annular (19) with annular (19) sliding fit's push pedal (26), the cross-section of push pedal (26) is the sector ring.

6. The pressure-resistant corrugated pipe for prestressed concrete according to claim 1, wherein: the outer side wall of the plug (10) is provided with a plug flange plate (34), and the outer side wall of the joint (4) is provided with a joint flange plate (9) which is connected with the plug flange plate (34) in a flange mode.

7. The pressure-resistant corrugated pipe for prestressed concrete according to claim 1, wherein: the corrugated pipe body (1) comprises a metal layer (12), an inner plastic layer (11) is arranged on the inner side of the metal layer (12), and the inner plastic layer (11) is made of polypropylene in a three-type mode.

8. The pressure-resistant corrugated pipe for prestressed concrete according to claim 7, wherein: an outer plastic layer (13) is arranged on the outer side of the metal layer (12), and the outer plastic layer (13) is made of polypropylene III.

9. The pressure-resistant corrugated pipe for prestressed concrete according to claim 1, wherein: corrugated pipe body (1) includes ripple section (14), sets up in ripple section (14) and is close to plug (10) one end and has male screw thread plug connection section (15), plug (10) offer on the terminal surface towards corrugated pipe body (1) with plug connection section (15) screw-thread fit's plug screw hole (17), be provided with plug sealing washer (18) between plug (10) and the terminal surface that plug connection section (15) deviate from ripple section (14).

10. The pressure-resistant corrugated pipe for prestressed concrete according to claim 9, wherein: the corrugated section (14) is provided with joint connection section (16) with the external screw thread near the one end of joint (4), joint (4) offer on the terminal surface towards corrugated pipe body (1) with joint connection section (16) screw-thread fit's joint screw hole (5), be provided with between the terminal surface that joint connection section (16) deviates from corrugated section (14) and joint (4) and connect sealing washer (6).

Technical Field

The invention relates to the technical field of corrugated pipes, in particular to a compression-resistant corrugated pipe for prestressed concrete.

Background

The corrugated pipe for prestressed concrete is mainly used for pipes in a preformed hole in a post-tensioned prestressed concrete structure and is used as a pore-forming pipeline of a concrete prestressed tendon, and the prestressed corrugated pipe in the market at present is mainly divided into two types, namely a plastic corrugated pipe (HDPE and PP) and a metal corrugated pipe according to the material. The metal corrugated pipe is a metal pipe which is made by spirally folding and seaming a galvanized or non-galvanized low-carbon steel strip and is used for a preformed hole in a post-tensioned prestressed concrete structural member, and is mainly used for non-concentric axial transmission with small bending radius, irregular turning, stretching, heat deformation absorption of a pipeline and the like.

The construction process of the corrugated pipe comprises the following steps: workers dig grooves in the road, place corrugated pipes into the grooves, and then connect adjacent corrugated pipes together to form a pipeline system. At present, corrugated pipes are usually connected together in a welding mode, and the connection mode is not only slow in installation speed, but also has a leakage point phenomenon during welding, so that the sealing performance of the corrugated pipes is affected.

Disclosure of Invention

The invention aims to solve the problems of low installation speed and poor sealing performance in the prior art and provides a compression-resistant corrugated pipe for prestressed concrete.

The above object of the present invention is achieved by the following technical solutions: the utility model provides a resistance to compression type bellows for prestressed concrete, includes the corrugated pipe body, be provided with respectively on the both ends of corrugated pipe body and be used for linking adjacent corrugated pipe together accept device, plug device, accept device is including setting up the joint on corrugated pipe body tip, the joint deviates from the socket on the terminal surface of corrugated pipe body, a plurality of sealed draw-in grooves have been seted up on the inner wall of socket, plug device including set up in the corrugated pipe body keep away from the one end of joint and with be used for with the socket complex plug of pegging graft, set up a plurality of annular that align with sealed draw-in groove on the lateral wall of plug, it is equipped with sealed rand to inlay in the annular, be provided with in the plug and be used for outwards expanding sealed rand and partly imbed the ring mechanism that expands in the sealed draw-in groove.

The invention is further configured to: a plurality of slide holes have been seted up on the diapire of annular, expand circle mechanism including slide set up in the slide hole and be used for promoting the outside slider that struts of sealed rand, set up in the plug and be used for controlling the slider reciprocating sliding's in the slide hole control block subassembly.

The invention is further configured to: the plug deviates from and has seted up guiding hole, mounting groove on the terminal surface of corrugated pipe body in proper order, mounting groove and slide opening intercommunication, the control block subassembly sets up including sliding in the guiding hole and inserts push rod, the one end of mounting groove and articulated with the push rod, the other end and slider articulated connecting rod, the pin joint of push rod and connecting rod is located one side that corrugated pipe body was kept away from to the pin joint of slider and connecting rod.

The invention is further configured to: the mounting groove is provided with a spring groove on the wall close to the corrugated pipe body, one end of the push rod close to the corrugated pipe body is provided with a stress disc inserted into the spring groove and in sliding fit with the spring groove, and a reset spring used for pushing the stress disc and the push rod to reset is arranged in the spring groove.

The invention is further configured to: every the slider is provided with the push pedal with annular sliding fit on being close to the terminal surface of annular, the cross-section of push pedal is the fan ring.

The invention is further configured to: the plug is characterized in that a plug flange is arranged on the outer side wall of the plug, and a joint flange connected with the plug flange in a flange mode is arranged on the outer side wall of the joint.

The invention is further configured to: the corrugated pipe body comprises a metal layer, an inner plastic layer is arranged on the inner side of the metal layer, and the inner plastic layer is made of polypropylene.

The invention is further configured to: an outer plastic layer is arranged on the outer side of the metal layer, and the outer plastic layer is made of polypropylene III.

The invention is further configured to: the corrugated pipe body comprises a corrugated section and a plug connecting section which is arranged at one end, close to the plug, of the corrugated section and is provided with an external thread, a plug threaded hole matched with the plug connecting section in a threaded mode is formed in the end face, facing the corrugated pipe body, of the plug, and a plug sealing ring is arranged between the end face, away from the corrugated section, of the plug connecting section and the plug.

The invention is further configured to: the corrugated section is provided with the joint connection section that has the external screw thread near the one end that connects, connect and set up on the terminal surface towards the corrugated pipe body with joint connection section screw hole of screw-thread fit, the terminal surface that the joint connection section deviates from the corrugated section is provided with the joint sealing washer between with the joint.

In conclusion, the beneficial technical effects of the invention are as follows: this compression-resistant corrugated pipe for prestressed concrete is through being provided with the receiving device and the plug device that can the high-speed joint on bellows body both ends, has solved the slow, poor problem of leakproofness of installation rate that exists among the prior art.

Drawings

FIG. 1 is a schematic structural view of a compression-resistant type corrugated pipe for prestressed concrete according to the present invention;

FIG. 2 is a sectional view showing the construction of a compression-resistant corrugated pipe for prestressed concrete according to the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a partial cross-sectional view of a plug assembly of the present invention;

FIG. 5 is a schematic view of the construction of the plug assembly of the present invention;

fig. 6 is a schematic view of the construction of the components in the plug device of the present invention.

In the above drawings: 1. a corrugated pipe body; 11. an inner plastic layer; 12. a metal layer; 13. an outer plastic layer; 14. a corrugated section; 15. a plug connection section; 16. a joint connection section; 2. a receiving device; 3. a plug device; 4. a joint; 5. a joint threaded hole; 6. a joint seal ring; 7. a socket; 8. sealing the clamping groove; 9. a joint flange; 10. a plug; 17. a plug threaded hole; 18. a plug seal ring; 19. a ring groove; 20. a slide hole; 21. a guide hole; 22. mounting grooves; 23. a spring slot; 24. a sealing collar; 25. a slider; 26. pushing the plate; 27. a control block mechanism; 28. a push rod; 29. a connecting rod; 30. a hinged frame; 31. a hinge hole; 32. a force-bearing plate; 33. a return spring; 34. plug flange.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained in the following with the accompanying drawings and the detailed description.

As shown in fig. 1, the invention provides a compression-resistant corrugated pipe for prestressed concrete, which comprises a corrugated pipe body 1, wherein two ends of the corrugated pipe are respectively provided with a receiving device 2 and a plug device 3 which are used for connecting adjacent corrugated pipes together.

As shown in fig. 2 and 3, the corrugated pipe body 1 sequentially comprises an inner plastic layer 11, a metal layer 12 and an outer plastic layer 13 from inside to outside, the inner plastic layer 11 and the outer plastic layer 13 are made of polypropylene of three types, the inner plastic layer 11 made of polypropylene of three types has the advantages of environmental protection, light weight, high strength, corrosion resistance, smooth inner wall, no scaling, long service life and the like, the outer plastic layer 13 made of polypropylene of three types has the advantages of corrosion resistance, long service life and the like, the metal layer 12 is made of aluminum alloy, the metal layer 12, the inner plastic layer 11 and the outer plastic layer 13 are bonded together through hot melt adhesive, the metal layer 12 made of aluminum alloy has the advantages of light weight and high strength, and the metal layer 12 is used as a framework structure of the corrugated pipe body 1, so that the corrugated pipe body 1 has the advantage of high structural strength.

As shown in fig. 2, the corrugated pipe body 1 includes a corrugated section 14, a plug connection section 15 and a joint connection section 16 integrally connected to both ends of the corrugated section 14, respectively, an external thread is provided on an outer side wall of the plug connection section 15, the external thread of the plug connection section 15 is located on the outer plastic layer 13, an external thread is provided on an outer side wall of the joint connection section 16, and the external thread of the joint connection section 16 is located on the outer plastic layer 13.

As shown in fig. 1 and 2, the receiving device 2 includes a cylindrical joint 4, the joint 4 is mounted on an end portion of the bellows body 1, a joint threaded hole 5 in threaded fit with the joint connection section 16 is formed in an end surface of the joint 4 facing the bellows body 1, and a joint sealing ring 6 is arranged between an end surface of the joint connection section 16 facing away from the bellows section 14 and the joint 4. During installation, the joint sealing ring 6 is firstly placed into the joint threaded hole 5, and then the joint connecting section 16 is screwed into the joint threaded hole 5. The end face of the joint 4, which deviates from the corrugated pipe body 1, is provided with a socket 7, and the inner wall of the socket 7 is provided with two annular sealing clamping grooves 8. The outer side wall of the joint 4 is integrally connected with a joint flange 9, and the joint flange 9 is positioned at one end of the joint 4 far away from the corrugated pipe body 1.

As shown in fig. 2, the plug device 3 includes a cylindrical plug 10, the plug 10 is in insertion fit with the socket 7 of the joint 4, the plug 10 is installed at one end of the bellows body 1 away from the joint 4, a plug threaded hole 17 in threaded fit with the plug connection section 15 is formed in an end surface of the plug 10 facing the bellows body 1, and a plug sealing ring 18 is arranged between the end surface of the plug connection section 15 facing away from the bellows section 14 and the plug 10. During installation, the plug sealing ring 18 is first inserted into the plug threaded hole 17, and then the plug connecting section 15 is screwed into the plug threaded hole 17.

As shown in fig. 4 and 5, two annular grooves 19 are formed on the outer side wall of the plug 10, and the two annular grooves 19 are aligned with the two sealing slots 8, respectively. Four sliding holes 20 are formed in the bottom wall of each ring groove 19 at equal intervals and on the circumference, and the sliding holes 20 are rectangular holes. The end face, deviating from the corrugated pipe body 1, of the plug 10 is sequentially provided with four groups of guide holes 21, four groups of mounting grooves 22 and four groups of spring grooves 23, the four groups of guide holes 21, the four groups of mounting grooves 22 and the four groups of spring grooves 23 are distributed in an equidistant circumferential manner, and each group of guide holes 21, the four groups of mounting grooves 22 and the four groups of spring grooves 23 are all located on the inner sides of the corresponding sliding holes 20. The guide hole 21 is a circular hole, one side of the mounting groove 22 close to the slide holes 20 is communicated with the corresponding two slide holes 20, the section of the spring groove 23 is circular, and the diameter of the spring groove 23 is larger than that of the guide hole 21.

Each sliding groove is embedded with a sealing clamping ring 24, the plug 10 is provided with a ring expanding mechanism, and the ring expanding mechanism is used for expanding the sealing clamping ring 24 outwards and partially embedding the sealing clamping groove 8. The ring expanding mechanism comprises a sliding block 25, the sliding block 25 is arranged in the sliding hole 20 in a sliding mode, a push plate 26 is fixedly connected to the end face, close to the annular groove 19, of each sliding block 25, the section of each push plate 26 is a sector ring, the four push plates 26 are spliced into a complete circular ring, the push plates 26 are arranged in the annular groove 19 in a sliding mode, the push plates 26 are located on the inner side of the sealing clamping ring 24, the middle point of the end face, facing the sealing clamping ring 24, of each push plate 26 is connected with the sealing clamping ring 24 in a gluing mode, and the push plates 26 can drive the sealing clamping ring 24 to move.

As shown in fig. 4 and 6, a control block mechanism 27 is disposed in the plug 10, the control block mechanism 27 is used for controlling the sliding block 25 to slide back and forth in the sliding hole 20, so as to drive the push plate 26 to open or reset outwards, and the control block mechanism 27 includes a push rod 28 and a connecting rod 29. The push rod 28 is slidably disposed in the guide hole 21, and when not installed, one end of the push plate 26 facing away from the bellows body 1 extends out of the guide hole 21. One end of the connecting rod 29 is hinged to the push rod 28, the other end of the connecting rod is hinged to the sliding block 25, a hinge frame 30 is fixedly connected to the outer side wall of the push plate 26, the hinge frame 30 is composed of two flat plates, a hinge pin is arranged between the two flat plates, a hinge hole 31 is formed in the sliding block 25, a hinge pin is arranged in the hinge hole 31, the connecting rod 29 and the push rod 28 are hinged through the hinge frame 30 and the hinge pin, the connecting rod 29 and the sliding block 25 are hinged through the hinge pin, the hinge point of the push rod 28 and the connecting rod 29 is located on one side, away from the corrugated pipe body 1, of the hinge point of the sliding block 25 and the hinge point of the connecting rod 29, when the push rod 28 moves towards the direction close to the corrugated pipe body 1, the connecting rod 29 can push the sliding block 25, the push plate 26 moves towards the direction close to the sealing retainer ring 24, and further pushes the sealing retainer ring 24 to expand outwards.

As shown in fig. 4 and 6, a disk-shaped force-bearing disc 32 is fixedly connected to one end of the push rod 28 close to the spring slot 23, the diameter of the force-bearing disc 32 is larger than that of the push rod 28, the force-bearing disc 32 is inserted into the spring slot 23 and is in sliding fit with the spring slot 23, a return spring 33 is arranged between the force-bearing disc 32 and the bottom wall of the spring slot 23, and the return spring 33 is used for pushing the force-bearing disc 32 and the push rod 28 to move away from the spring slot 23 and then return to the original position.

As shown in fig. 2, a plug flange 34 is integrally connected to an outer side wall of the plug 10, the plug flange 34 is used for flange connection with the connector flange 9, so as to fix the receiving device 2 and the plug device 3 together, and a sealing gasket is arranged between the plug flange 34 and the connector flange 9 for sealing.

The detailed working process of the embodiment is as follows:

s1, firstly digging a groove for installing a pipeline on a road by a worker, and then placing the corrugated pipes into the groove in a one-by-one mode;

s2, the worker inserts the plug 10 of the next corrugated pipe into the socket 7 of the previous corrugated pipe, until the plug 10 is completely inserted into the socket 7, the push rod 28 is pressed to move towards the direction close to the corrugated pipe body 1, meanwhile, the connecting rod 29 can push the slide block 25 and the push plate 26 to move towards the direction close to the sealing clamp ring 24, and further push the sealing clamp ring 24 to expand outwards until half of the sealing clamp ring 24 is embedded into the sealing clamp groove 8, and the other half is left in the ring groove 19;

and S3, the worker bolts the adapter flange 9 of the former bellows and the plug flange 34 of the latter bellows together.

This compression-resistant corrugated pipe for prestressed concrete is through being provided with receiving device 2 and plug device 3 that can the high-speed joint on 1 both ends of bellows body, has solved the slow, poor problem of leakproofness of installation rate that exists among the prior art.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.