CN215417646U

CN215417646U - Fire-resistant cable with flame-retardant insulating sheath

Info

Publication number: CN215417646U
Application number: CN202121868711.2U
Authority: CN
Inventors: 徐法安
Original assignee: Anhui Kangsheng Electric Group Co ltd
Current assignee: Anhui Kangsheng Electric Group Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-01-04
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a fire-resistant cable with a flame-retardant insulating sheath, which comprises the flame-retardant insulating sheath, wherein two ends of the flame-retardant insulating sheath are clamped and installed with elastic metal rings, fixed conjunction blocks are fixedly welded on the front side and the rear side of the upper end of each elastic metal ring, a clamping sleeve is sleeved on the upper end of each fixed conjunction block, U-shaped clamping pins are respectively inserted into the upper end and the two sides of each clamping sleeve, installation blocks are fixedly welded on the lower ends of the two sides of each clamping sleeve, a movable cavity is fixedly arranged on the inner side of each installation block, an extension spring is fixedly welded on one side inside each movable cavity, a movable abutting plate is fixedly welded on one side of each extension spring, and an insertion block is fixedly welded in the middle of one side of each movable abutting plate. According to the utility model, the elastic metal rings are clamped on the surfaces of the two sides of the flame-retardant insulating sheath, and the elastic metal rings have certain elasticity, so that the flame-retardant insulating sheath and the cable outer sheath can be tightly attached and fixed by the elastic metal rings.

Description

Fire-resistant cable with flame-retardant insulating sheath

Technical Field

The utility model relates to the technical field of fire-resistant cables, in particular to a fire-resistant cable with a flame-retardant insulating sheath.

Background

With the rapid development of social economy, the fire-resistant cable is widely applied to places related to fire safety and fire-fighting and life saving, such as high-rise buildings, underground railways, underground streets, large-scale power stations, important industrial and mining enterprises and the like, for example: the power supply line and the control line of emergency facilities such as fire-fighting equipment, emergency guide lamps and the like. Fire-resistant cable means a cable that can be kept in operation safely for a certain period of time in the event of a flame burn.

However, the flame-retardant insulating sheath is unstable to be fixed on the existing fire-resistant cable, and the flame-retardant insulating sheath is mostly connected by pasting, so that the fire-resistant cable cannot be effectively replaced after being damaged, and the fire-resistant cable is not beneficial to reuse and use. Thus, the existing needs are not met, for which we propose a fire resistant cable with a flame retardant insulating sheath.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fire-resistant cable with a fire-resistant insulating sheath, which aims to solve the problems that the fire-resistant cable provided by the background art is unstable in fixing the fire-resistant insulating sheath, most of the fire-resistant insulating sheaths are connected in a sticking manner, so that the fire-resistant insulating sheath cannot be effectively replaced after being damaged, the whole fire-resistant cable cannot be reused and used, and the like.

In order to achieve the purpose, the utility model provides the following technical scheme: a fire-resistant cable with a flame-retardant insulating sheath comprises the flame-retardant insulating sheath, wherein two ends of the flame-retardant insulating sheath are clamped and installed with an elastic metal ring, fixed conjunction blocks are fixedly welded on the front side and the rear side of the upper end of the elastic metal ring, a clamping sleeve is sleeved on the upper end of each fixed conjunction block, U-shaped clamping pins are inserted in the upper end and the two sides of the clamping sleeve, installation blocks are fixedly welded on the lower ends of the two sides of the clamping sleeve, an active cavity is fixedly arranged on the inner side of each installation block, an extension spring is fixedly welded on one side inside the active cavity, a movable abutting plate is fixedly welded on one side of the extension spring, an insertion block is fixedly welded in the middle of one side of the movable abutting plate, the insertion block is located on the inner side of the extension spring, a push rod is fixedly welded in the middle of the other side of the movable abutting plate, and an insertion groove is formed in the inner side of the installation block in a penetrating manner from top to bottom, the clamping sleeve is characterized in that a cylindrical hole groove penetrates through the middle of the outer surface of the clamping sleeve, square limiting grooves are transversely formed in the positions, close to the middle, of two sides of the fixed fitting block, and the clamping groove is fixedly formed in the middle of the inner portion of the clamping sleeve.

Preferably, the cylindrical hole groove is formed in the middle of the outer surface of the clamping sleeve, the cylindrical hole groove penetrates through the middle of the upper end and the lower end of the insertion block, and the lower end of the U-shaped clamping pin is inserted into the cylindrical hole groove.

Preferably, the insertion groove and the cylindrical hole groove are of an integral structure, and the insertion groove penetrates through the middle between the upper end and the lower end of the mounting block and the clamping sleeve.

Preferably, a through hole penetrates through the middle of the inner side of the movable cavity, the through hole penetrates through the mounting block and extends to the inner side of the clamping sleeve, the inserting block is movably located in the through hole, and one end of the inserting block is inserted into a square limiting groove located on the fixed conjunction block.

Preferably, the inner side of the flame-retardant insulating sheath is provided with a cable outer sheath, and the inner side of the cable outer sheath is provided with four metal copper wires.

Preferably, the metal copper wire is positioned on the inner side of the cable outer sheath, and an insulating filler is filled between the cable outer sheath and the metal copper wire.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the elastic metal rings are clamped on the surfaces of the two sides of the flame-retardant insulating sheath, and the elastic metal rings have certain elasticity, so that the flame-retardant insulating sheath and the cable outer sheath can be tightly attached and fixed by the elastic metal rings;

2. according to the clamping device, the mounting blocks are fixedly arranged on the two sides of the clamping sleeve, the movable abutting plate and the extension spring are movably mounted in the mounting blocks, the movable abutting plate and the inserting block can move transversely through the elastic movement of the extension spring, the limiting effect on the fixed fitting block is greatly improved through the insertion and matching of one end of the inserting block and the square limiting groove on the fixed fitting block, the inserting groove is formed in the mounting block, the cylindrical hole groove is formed in the clamping sleeve, the U-shaped clamping pin can be inserted and mounted in the inserting groove and the cylindrical hole groove, and therefore the clamping and fixing of the inserting block are further improved, and the inserting block cannot move transversely.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a side cut-away view of the present invention in its entirety;

fig. 3 is an enlarged sectional view taken at a in fig. 2 according to the present invention.

In the figure: 1. a flame retardant insulating sheath; 2. a cable outer sheath; 3. an elastic metal ring; 4. clamping and sleeving; 5. fixing the conjunction block; 6. mounting blocks; 7. a push rod; 8. a movable cavity; 9. a movable resisting plate; 10. extending the spring; 11. inserting the slots; 12. a cylindrical bore slot; 13. a U-shaped bayonet lock; 14. a square limit groove; 15. inserting a block; 16. a metallic copper wire; 17. an insulating filler; 18. and (4) clamping the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 3, an embodiment of the present invention includes: a fire-resistant cable with a flame-retardant insulating sheath comprises a flame-retardant insulating sheath 1, wherein two ends of the flame-retardant insulating sheath 1 are clamped and installed with elastic metal rings 3, fixed conjunction blocks 5 are fixedly welded on the front side and the rear side of the upper end of each elastic metal ring 3, a clamping sleeve 4 is sleeved on the upper end of each fixed conjunction block 5, U-shaped clamping pins 13 are respectively inserted into the upper end and the two sides of each clamping sleeve 4, installation blocks 6 are fixedly welded on the lower ends of the two sides of each clamping sleeve 4, a movable cavity 8 is fixedly arranged on the inner side of each installation block 6, an extension spring 10 is fixedly welded on one side inside each movable cavity 8, a movable abutting plate 9 is fixedly welded on one side of each extension spring 10, an insertion block 15 is fixedly welded in the middle of one side of each movable abutting plate 9, a push rod 7 is fixedly welded in the middle of the other side of each movable abutting plate 9, and an insertion groove 11 is formed in the inner side of each installation block 6 in a penetrating manner, a cylindrical hole groove 12 is arranged in the middle of the outer surface of the clamping sleeve 4 in a penetrating mode, square limiting grooves 14 are transversely arranged on the two sides of the fixed conjunction block 5 close to the middle, and a clamping groove 18 is fixedly arranged in the middle of the inner portion of the clamping sleeve 4.

Further, the cylindrical hole groove 12 is arranged in the middle of the outer surface of the clamping sleeve 4, the cylindrical hole groove 12 penetrates through the middle of the upper end and the lower end of the insertion block 15, the lower end of the U-shaped clamping pin 13 is inserted into the cylindrical hole groove 12, and the cylindrical hole groove 12 can improve the limiting and fixing effect on the U-shaped clamping pin 13.

Further, the insertion groove 11 and the cylindrical hole groove 12 are of an integral structure, the insertion groove 11 penetrates through the middle position between the upper end and the lower end of the mounting block 6 and the clamping sleeve 4, and the insertion groove 11 further improves the limiting effect on the U-shaped clamping pin 13.

Furthermore, a through hole penetrates through the middle of the inner side of the movable cavity 8, the through hole penetrates through the mounting block 6 and extends to the inner side of the clamping sleeve 4, the insertion block 15 is movably located in the through hole, one end of the insertion block 15 is inserted into the square limiting groove 14 located on the fixed conjunction block 5, and the through hole in the inner side of the movable cavity 8 is beneficial to transverse movement of the insertion block 15.

Further, a cable outer sheath 2 is arranged on the inner side of the flame-retardant insulating sheath 1, and four metal copper wires 16 are arranged on the inner side of the cable outer sheath 2.

Further, the metal copper wire 16 is positioned on the inner side of the cable outer sheath 2, and an insulating filler 17 is filled between the cable outer sheath 2 and the metal copper wire 16.

The working principle is as follows: when the cable sheath is used, the flame-retardant insulating sheath 1 is sleeved on the surface of the cable sheath 2, the elastic metal ring 3 is clamped on the surfaces of the two sides of the flame-retardant insulating sheath 1, the elastic metal ring 3 has certain elasticity, so that the elastic metal ring 3 can enable the flame-retardant insulating sheath 1 and the cable sheath 2 to be tightly attached and fixed, the two fixing conjunction blocks 5 can be fixedly welded on the two sides of the upper end of the flame-retardant insulating sheath 1, the clamping grooves 18 in the clamping sleeve 4 can clamp and fix the two fixing conjunction blocks 5, the two fixing conjunction blocks 5 can be attached to the inner side, and the fixing performance of the elastic metal ring 3 on the whole flame-retardant insulating sheath 1 is further improved; the mounting blocks 6 are fixedly arranged on two sides of the clamping sleeve 4, the movable abutting plate 9 and the extension spring 10 are movably mounted in the mounting blocks 6, the movable abutting plate 9 and the inserting block 15 can move transversely through the elastic movement of the extension spring 10, the limiting effect on the fixed fitting block 5 is greatly improved through the insertion and matching of one end of the inserting block 15 and the square limiting groove 14 on the fixed fitting block 5, the inserting groove 11 is arranged on the mounting block 6, and the cylindrical hole groove 12 is arranged on the clamping sleeve 4, so that the U-shaped clamping pin 13 can be inserted and mounted in the inserting groove 11 and the cylindrical hole groove 12, the fixing of the inserting block 15 is further improved, and the inserting block 15 cannot move transversely; firstly, the inward end of the push rod 7 without any trouble of the push rod 7 is pressed, so that the insertion block 15 and the square limiting groove 14 are driven to be inserted and matched, the cylindrical hole groove 12 on the insertion block 15 and the insertion groove 11 on the mounting block 6 are aligned, then the U-shaped bayonet 13 is inserted and mounted in the insertion groove 11 and the cylindrical hole groove 12, if the U-shaped bayonet 13 is dismounted, the U-shaped bayonet 13 is pulled out from the insertion groove 11 and the cylindrical hole groove 12, the elastic force of the extension spring 10 can move the movable abutting plate 9 to one side, so that the insertion block 15 and the square limiting groove 14 are detached, and at the moment, the clamping sleeve 4 and the fixed conjunction block 5 can be dismounted.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a take fire-resistant cable of fire-retardant insulating sheath, includes fire-retardant insulating sheath (1), its characterized in that: the flame-retardant insulating sheath is characterized in that elastic metal rings (3) are clamped and installed at two ends of the flame-retardant insulating sheath (1), fixed wedge blocks (5) are fixedly welded on the front side and the rear side of the upper end of each elastic metal ring (3), clamping sleeves (4) are sleeved on the upper ends of the fixed wedge blocks (5), U-shaped clamping pins (13) are inserted into the upper ends and the two sides of each clamping sleeve (4), installation blocks (6) are fixedly welded on the lower ends of the two sides of each clamping sleeve (4), movable cavities (8) are fixedly arranged on the inner sides of the installation blocks (6), extension springs (10) are fixedly welded on one sides of the inner parts of the movable cavities (8), movable abutting plates (9) are fixedly welded on one sides of the extension springs (10), insertion blocks (15) are fixedly welded on the middles of one sides of the movable abutting plates (9), push rods (7) are fixedly welded on the middles of the other sides of the movable abutting plates (9), the inner side of the mounting block (6) is provided with an insertion groove (11) in a vertically penetrating mode, the middle of the outer surface of the clamping sleeve (4) is provided with a cylindrical hole groove (12) in a penetrating mode, square limiting grooves (14) are transversely formed in the positions, close to the middle, of the two sides of the fixed conjunction block (5), and the middle of the inner portion of the clamping sleeve (4) is fixedly provided with a clamping groove (18).

2. The fire resistant cable with fire retardant insulation sheath of claim 1, wherein: the cylindrical hole groove (12) is arranged in the middle of the outer surface of the clamping sleeve (4), the cylindrical hole groove (12) penetrates through the middle of the upper end and the lower end of the insertion block (15), and the lower end of the U-shaped clamping pin (13) is inserted into the cylindrical hole groove (12).

3. The fire resistant cable with fire retardant insulation sheath of claim 1, wherein: the plug-in groove (11) and the cylindrical hole groove (12) are of an integral structure, and the plug-in groove (11) penetrates through the middle between the upper end and the lower end of the mounting block (6) and the clamping sleeve (4).

4. The fire resistant cable with fire retardant insulation sheath of claim 1, wherein: the middle of the inner side of the movable cavity (8) is provided with a through hole in a penetrating mode, the through hole penetrates through the mounting block (6) and extends to the inner side of the clamping sleeve (4), the inserting block (15) is movably located in the through hole, and one end of the inserting block (15) is inserted into a square limiting groove (14) located on the fixed conjunction block (5).

5. The fire resistant cable with fire retardant insulation sheath of claim 1, wherein: the cable sheath (2) is arranged on the inner side of the flame-retardant insulating sheath (1), and four metal copper wires (16) are arranged on the inner side of the cable sheath (2).

6. The fire resistant cable with fire retardant insulation sheath of claim 5, wherein: the metal copper wire (16) is positioned on the inner side of the cable outer sheath (2), and an insulating filler (17) is filled between the cable outer sheath (2) and the metal copper wire (16).