CN214204753U - MFPT plastic steel composite cable conduit - Google Patents

Abstract

The application relates to an MFPT plastic steel composite cable duct, relating to the technical field of cable ducts; the main technical scheme is that the clamping device comprises an inner pipe, a clamping strip fixed on the inner pipe and an outer pipe sleeved outside the inner pipe, wherein a clamping groove for inserting the clamping strip is formed in the inner side wall of the outer pipe, and a connecting assembly for connecting the inner pipe and the outer pipe is arranged on the clamping strip; when installation inner tube and outer tube, insert the inner tube in the outer tube, the joint strip inserts the joint inslot, and rethread coupling assembling fixes the joint strip at the joint inslot to be in the same place inner tube and outer tube are fixed smoothly, with this joint strength who improves between inner tube and the outer tube, reduce the possibility that takes place the dislocation between inner tube and the outer tube.

Description

MFPT plastic steel composite cable conduit

Technical Field

The application relates to the technical field of cable ducts, in particular to an MFPT plastic steel composite cable duct.

Background

The MFPT plastic-steel composite cable duct is formed by compounding MPP plastic and glass fiber reinforced plastic into a whole, is mainly used for protecting cables, and has the characteristics of strong corrosion resistance, smooth inner surface, long service life and the like.

Chinese utility model patent with publication number CN203967702U discloses a low resistance wear-resistant plastic-steel composite cable conduit with middle bonding layer, which comprises an inner tube, wherein the bonding layer is coated on the outer surface of the inner tube, and a glass steel tube is sleeved outside the inner tube.

In view of the above-mentioned related art, the inventors believe that the adhesive layer is easily deformed when the external temperature changes, so that the connection strength between the inner tube and the glass fiber reinforced plastic tube is weak, and the inner tube and the glass fiber reinforced plastic tube are easily misaligned.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the connection strength between an inner pipe and a glass steel pipe is weak, the application provides an MFPT plastic steel composite cable guide pipe.

The application provides a MFPT plastic steel composite cable pipe adopts following technical scheme:

the utility model provides a MFPT plastic steel composite cable pipe, includes the inner tube, fixes joint strip and the cover on the inner tube and establish the outer tube in the inner tube outside, set up on the inside wall of outer tube and supply joint strip male joint groove, be equipped with the coupling assembling that is used for connecting inner tube and outer tube on the joint strip.

Through adopting above-mentioned technical scheme, when installation inner tube and outer tube, insert the outer tube with the inner tube in, the joint strip inserts the joint inslot, and rethread coupling assembling fixes the joint strip in the joint inslot to being in the same place inner tube and outer tube are fixed smoothly, with this joint strength who improves between inner tube and the outer tube, the possibility of taking place the dislocation between reduction inner tube and the outer tube.

Optionally, coupling assembling includes the connecting block and fixes the coupling spring on the connecting block, be equipped with the joint hole on the side of joint strip, the connecting block slides and connects downthehole in the joint, coupling spring keeps away from the one end in connecting block and the hole bottom wall fixed connection in joint hole, one side that coupling spring was kept away from to the connecting block stretches out the joint hole, be equipped with on the groove lateral wall in joint groove and supply connecting block male connecting hole.

Through adopting above-mentioned technical scheme, the joint strip inserts before the joint inslot, impresses the connecting block in the joint hole earlier, and connecting block extrusion coupling spring, coupling spring produce compression deformation, inserts the joint inslot with the joint strip again, and when joint hole and connecting hole relative time, thereby coupling spring resumes deformation and promotes the connecting block and stretches out the joint hole and insert in the connecting hole to fix the connecting strip at the joint inslot smoothly.

Optionally, the side of the connecting block is provided with an extrusion inclined plane, and the extrusion inclined plane is arranged towards one side of the clamping strip inserted into the clamping groove.

Through adopting above-mentioned technical scheme, the joint strip is when inserting the joint inslot, and the groove lateral wall in joint groove is inconsistent with the extrusion inclined plane to promote the connecting block smoothly and receive in the joint hole.

Optionally, a snap ring is arranged on the inner side wall of the outer pipe, and a top ring which is abutted against the snap ring is fixed on the outer side wall of the inner pipe.

Through adopting above-mentioned technical scheme, when the inner tube inserts the outer tube, utilize snap ring and apical ring mutual butt, restriction inner tube male position to improve the joint strength between inner tube and the outer tube.

Optionally, a connecting rod is fixed in the connecting hole, and a clamping hole for inserting the connecting rod is formed in the connecting block.

Through adopting above-mentioned technical scheme, when the connecting block inserts in the connecting hole, the connecting rod inserts in the card hole to increase the joint strength of connecting block in the connecting hole.

Optionally, one end of the connecting rod inserted into the clamping hole is provided with a tip.

Through adopting above-mentioned technical scheme, the most advanced cross-sectional area that reduces the connecting rod thereby the connecting rod conveniently inserts in the card hole.

Optionally, be equipped with the packing pad on the lateral wall of joint strip, pack the pad with the groove lateral wall in joint groove is contradicted.

Through adopting above-mentioned technical scheme, fill the clearance of filling between filling the pad and filling joint strip and the joint groove, reduce the joint strip and take place the possibility of rocking at the joint inslot.

Optionally, an extrusion pad is arranged on the outer side wall of the inner pipe, and the extrusion pad is abutted to the inner side wall of the outer pipe.

Through adopting above-mentioned technical scheme, the clearance between inner tube and the outer tube is filled to the extrusion pad, increases the frictional force between inner tube and the outer tube to be favorable to improving the joint strength between inner tube and the outer tube.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the inner pipe and the outer pipe are installed, the inner pipe is inserted into the outer pipe, the clamping strips are inserted into the clamping grooves at the same time, the inner pipe and the outer pipe are connected together, and the clamping strips and the clamping grooves are fixed together by the connecting assembly, so that the inner pipe and the outer pipe are smoothly fixed together, the connecting strength between the inner pipe and the outer pipe is improved, and the possibility of dislocation between the inner pipe and the outer pipe is reduced;

2. when the clamping strip is inserted into the clamping groove, the connecting block is smoothly pressed into the clamping hole by pushing and extruding the inclined plane;

3. when the connecting block is inserted into the connecting hole, the connecting rod is inserted into the clamping hole, so that the installation stability of the connecting block in the connecting block is smoothly improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an MFPT plastic-steel composite cable duct according to an embodiment of the present application.

Fig. 2 is a schematic sectional view of the pipe, the inner pipe, the snap strip and the connection assembly of fig. 1.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic sectional view of the pipe, the inner pipe, the top ring and the retainer ring of fig. 1.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Description of reference numerals: 1. an outer tube; 11. an inner tube; 111. a clamping strip; 112. filling the pad; 113. pressing the cushion; 114. a clamping hole; 115. a top ring; 12. a clamping groove; 121. connecting holes; 13. a snap ring; 2. a connecting assembly; 21. connecting blocks; 211. extruding the inclined plane; 212. a clamping hole; 22. a connecting spring; 23. a connecting rod; 231. a tip.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses an MFPT plastic steel composite cable conduit.

Referring to fig. 1, the MFPT plastic-steel composite cable guide comprises an outer tube 1, an inner tube 11 and four clamping strips 111, wherein the clamping strips 111 are fixed on the outer side wall of the inner tube 11 and arranged along the axial direction of the inner tube 11, the four clamping strips 111 are arranged, and the four clamping strips 111 are uniformly distributed along the circumferential direction of the inner tube 11; the outer pipe 1 is made of glass fiber reinforced plastic, the outer pipe 1 is sleeved on the outer side of the inner pipe 11, a clamping groove 12 for inserting a clamping strip 111 is formed in the inner side wall of the outer pipe 1, and a connecting assembly 2 for connecting the inner pipe 11 and the outer pipe 1 into a whole is arranged on the clamping strip 111; a filling pad 112 is adhered to the outer side wall of the clamping strip 111, and one side of the filling pad 112, which is far away from the clamping strip 111, is abutted against the side wall of the clamping groove 12; when installation inner tube 11 and outer tube 1, insert inner tube 11 in the outer tube 1, joint strip 111 inserts the joint inslot 12 simultaneously, thereby link together inner tube 11 and outer tube 1, recycle coupling assembling 2 and fix joint strip 111 in joint inslot 12, thereby be in the same place inner tube 11 and outer tube 1 are fixed smoothly, recycle and fill the clearance between 112 packing joint strip 111 and joint inslot 12, reduce the possibility that joint strip 111 took place to rock in joint inslot 12, with this fix inner tube 11 and outer tube 1 together smoothly, improve the joint strength between inner tube 11 and the outer tube 1, reduce the possibility of taking place the dislocation between inner tube 11 and the outer tube 1.

Referring to fig. 1, it has the extrusion pad 113 to glue on the lateral wall of inner tube 11, and extrusion pad 113 adopts elastic rubber to make, and extrusion pad 113 encircles along the circumference of inner tube 11 and establishes, and extrusion pad 113's lateral wall is inconsistent with the inside wall of outer tube 1, and extrusion pad 113 fills the clearance between inner tube 11 and the outer tube 1, is favorable to improving the joint strength between inner tube 11 and the outer tube 1.

Referring to fig. 3, the connecting assembly 2 includes a connecting block 21, a connecting spring 22 and a connecting rod 23, a clamping hole 114 is formed in the side surface of the clamping strip 111, the connecting block 21 is connected in the clamping hole 114 in a sliding manner, one end of the connecting spring 22 is welded to the side surface of the connecting block 21, the other end of the connecting spring is welded to the bottom wall of the clamping hole 114, one side of the connecting block 21, which is far away from the connecting spring 22, extends out of the clamping hole 114, an extrusion inclined surface 211 is arranged on one side of the connecting block 21, which extends out of the clamping hole 114, and the extrusion inclined surface 211 is arranged towards one side of the clamping strip 111, which is inserted into the clamping groove 12; a connecting hole 121 for inserting the connecting block 21 is formed in the bottom wall of the clamping groove 12, the connecting rod 23 is welded in the connecting hole 121, the connecting rod 23 and the connecting hole 121 are coaxially arranged, a clamping hole 212 for inserting the connecting rod 23 is formed in one end, inserted into the connecting hole 121, of the connecting block 21, and a tip 231 is arranged at one end, inserted into the clamping hole 212, of the connecting rod 23; when the clamping strip 111 is inserted into the clamping groove 12, the groove side wall of the clamping groove 12 is abutted against the extrusion inclined surface 211, so that the connecting block 21 is pushed to extend into the clamping hole 114, the connecting block 21 extrudes the connecting spring 22, the connecting spring 22 generates compression deformation, when the connecting hole 121 is opposite to the clamping hole 114, the connecting spring 22 recovers deformation, the connecting block 21 is pushed to extend out of the clamping hole 114 and extend into the connecting hole 121, the connecting rod 23 is simultaneously inserted into the clamping hole 212, so that the connecting block 21 is fixed in the connecting hole 121, the cross sectional area of the connecting rod 23 is reduced by the tip 231, and the connecting rod 23 is conveniently and smoothly inserted into the clamping hole 212; thereby smoothly fixing the clip strip 111 in the clip groove 12.

Referring to fig. 4 and 5, a top ring 115 is welded on the outer side wall of the inner tube 11, the top ring 115 and the inner tube 11 are coaxially arranged, the top ring 115 is arranged near one end of the inner tube 11 inserted into the outer tube 1, a snap ring 13 abutting against the top ring 115 is welded on the inner side wall of the outer tube 1, and the snap ring 13 is arranged at one end of the outer tube 1 far away from the end of the inner tube 11 inserted; after the inner pipe 11 is inserted into the outer pipe 1, the top ring 115 and the snap ring 13 are abutted against each other, so that the inner pipe 11 is further limited, and the connection strength between the inner pipe 11 and the outer pipe 1 is favorably improved.

The implementation principle of the MFPT plastic-steel composite cable duct of the embodiment of the application is as follows: when connecting inner tube 11 and outer tube 1, earlier insert inner tube 11 in the outer tube 1, insert joint strip 111 simultaneously in the joint groove 12, be connected inner tube 11 and outer tube 1 smoothly, recycle coupling assembling 2 and fix joint strip 111 in joint groove 12, be in the same place inner tube 11 and outer tube 1 are fixed smoothly to this joint strength who improves between inner tube 11 and the outer tube 1 reduces the possibility that takes place the dislocation between inner tube 11 and the outer tube 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a MFPT plastic steel composite cable pipe which characterized in that: including inner tube (11), fix joint strip (111) on inner tube (11) and establish outer tube (1) in the inner tube (11) outside at the cover, offer on the inside wall of outer tube (1) and supply joint strip (111) male joint groove (12), be equipped with coupling assembling (2) that are used for connecting inner tube (11) and outer tube (1) on joint strip (111).

2. The MFPT plastic-steel composite cable duct of claim 1, wherein: coupling assembling (2) include connecting block (21) and fix connecting spring (22) on connecting block (21), be equipped with joint hole (114) on the side of joint strip (111), connecting block (21) slide and connect in joint hole (114), connecting spring (22) are kept away from the one end of connecting block (21) and the hole bottom wall fixed connection in joint hole (114), joint hole (114) is stretched out to one side that connecting spring (22) were kept away from in connecting block (21), be equipped with on the groove lateral wall in joint groove (12) and supply connecting block (21) male connecting hole (121).

3. The MFPT plastic-steel composite cable duct of claim 2, wherein: be equipped with extrusion inclined plane (211) on the side of connecting block (21), extrusion inclined plane (211) set up towards one side that joint strip (111) inserted in joint groove (12).

4. The MFPT plastic-steel composite cable duct of claim 3, wherein: the inner side wall of the outer pipe (1) is provided with a clamping ring (13), and the outer side wall of the inner pipe (11) is fixedly provided with a top ring (115) which is abutted against the clamping ring (13).

5. The MFPT plastic-steel composite cable duct of claim 2, wherein: the connecting rod (23) is fixed in the connecting hole (121), and a clamping hole (212) for inserting the connecting rod (23) is formed in the connecting block (21).

6. The MFPT plastic-steel composite cable duct of claim 5, wherein: one end of the connecting rod (23) inserted into the clamping hole (212) is provided with a tip (231).

7. The MFPT plastic-steel composite cable duct of claim 1, wherein: be equipped with on the lateral wall of joint strip (111) and fill pad (112), fill pad (112) with the groove lateral wall of joint groove (12) is contradicted.

8. The MFPT plastic-steel composite cable duct of claim 1, wherein: the outer side wall of the inner pipe (11) is provided with an extrusion pad (113), and the extrusion pad (113) is inconsistent with the inner side wall of the outer pipe (1).

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