Rubber-coated waterproof metal hose for cable

Abstract

The utility model belongs to the technical field of cable protection, and discloses a rubber-coated waterproof metal hose for a cable, which comprises a first hose and a second hose, one end of the first hose is sleeved with a first joint seat, one end of the second hose is sleeved with a second joint seat, and the first joint seat is sleeved with a second joint seat. A plurality of mounting holes are formed in the inner surfaces of the first connector base and the second connector base, screws are connected to the positions, corresponding to the sides of the mounting holes, of the inner surfaces of the first connector base and the second connector base in a penetrating mode, fixing protruding blocks are slidably installed on the outer surfaces of one ends of the screws, and first springs are installed between the opposite faces of the screws and the second connector base. The external thread connector and the internal thread connector are connected and fixed by rotating the external thread connector, the inconvenience that the external thread connector needs to drive the hose to rotate together is avoided, the external thread connector and the internal thread connector are more convenient to install, and the connecting position of the external thread connector and the internal thread connector is not prone to loosening through extrusion force of the spring.

Description

Technical Field

[0001] This utility model belongs to the field of cable protection technology, and in particular relates to a rubber-coated waterproof metal flexible tube for use with cables. Background Technology

[0002] During cable laying, metal flexible conduits are typically used to wrap the cables to protect them from damage caused by the external environment.

[0003] Existing metal flexible hoses are usually installed using a compression fitting method at the joint. This method makes the hose not securely fixed and it is easy to fall off, allowing rainwater or dust to enter the hose from the break point. This causes the cable inside the hose to get damp, affecting the normal use and lifespan of the cable. Utility Model Content

[0004] This utility model addresses the problem that existing technologies typically use threaded connections at the joints of metal flexible conduits. This method results in insecure consolidation, making the conduit prone to detachment. This allows rainwater or dust to enter the conduit through the break, causing moisture damage to the internal cables and affecting their normal use and lifespan. The following technical solution is proposed:

[0005] A waterproof metal flexible conduit for use with cables includes: a first flexible conduit and a second flexible conduit. One end of the first flexible conduit is fitted with a first connector seat, and one end of the second flexible conduit is fitted with a second connector seat. Multiple sliding grooves are formed on the outer surfaces of both the first and second flexible conduits. Multiple mounting holes are formed on the inner surfaces of both the first and second connector seats. Screws are threaded through the inner surfaces of both connector seats at positions corresponding to the mounting holes. A fixing protrusion is fixedly installed at one end of each screw. A first spring is installed between the opposing surfaces of the screw and the second connector seat, with the first spring fitted onto the outside of the screw. A connecting rod is fixedly installed on the side of each fixing protrusion. Several connecting rods pass through the opposing first or second connector seats. An airbag is fixedly installed on the inner surface of the first connector seat at one end of the first flexible conduit.

[0006] An internal threaded connector is slidably installed inside the No. 1 connector seat. Multiple support columns are fixedly installed at the bottom of the internal threaded connector. An external threaded connector is connected to the inner surface of the internal threaded connector by a thread. One end of the external threaded connector is fixedly installed inside the No. 2 connector seat.

[0007] As a preferred embodiment of the above technical solution, the first connector seat has an annular groove inside, and both the sliding plate and one end of the internal threaded connector are located inside the annular groove.

[0008] As a preferred embodiment of the above technical solution, a convex ring is provided on the inner surface of the internal threaded connector, and a rubber sheet is fixedly installed on the top of the convex ring.

[0009] As a preferred embodiment of the above technical solution, the second hose and the second connector are connected by screws.

[0010] As a preferred embodiment of the above technical solution, the first hose and the second hose are provided with an inclined angle at opposite ends.

[0011] As a preferred embodiment of the above technical solution, a second spring is installed between the opposing surfaces of several support columns and internal threaded joints, and a sliding plate is fixedly installed between the other ends of several second springs.

[0012] The beneficial effects of this utility model are as follows:

[0013] (1) By rotating the external threaded connector, the external threaded connector and the internal threaded connector are connected and fixed, avoiding the inconvenience of the external threaded connector needing to rotate the hose together, making the installation of the external threaded connector and the internal threaded connector more convenient, and the spring compression force makes the connection between the external threaded connector and the internal threaded connector less prone to loosening.

[0014] (2) The fixing protrusion is tightly fitted to the inside of the hose by the No. 1 spring, so that the hose cannot be displaced when connected to the connector seat, thus solving the problem of the hose and connector seat becoming loose or falling off. An air bladder is set at one end of the hose inside the connector seat. By squeezing the air bladder, the hose and connector seat are sealed, thus solving the problem of the cable getting damp. Attached Figure Description

[0015] Figure 1 The diagram shown is a structural schematic of a rubber-coated waterproof metal flexible tube for use with cables in an embodiment.

[0016] Figure 2 The diagram shown is a schematic diagram of the installation structure of hose No. 2 in the embodiment;

[0017] Figure 3 The diagram shown is a schematic diagram of the installation structure of connector seat No. 1 in the embodiment;

[0018] Figure 4 The diagram shown is a schematic representation of the ball bearing installation structure in the embodiment.

[0019] Figure 5 What is shown is Figure 4 Schematic diagram of the installation structure in area A.

[0020] In the diagram: 1. Hose No. 1; 2. Connector No. 1; 3. Fixing protrusion; 4. Spring No. 1; 5. Screw; 6. Airbag; 7. Sliding groove; 8. Mounting hole; 9. Sliding plate; 10. Spring No. 2; 11. Internal thread connector; 12. External thread connector; 13. Raised ring; 14. Rubber sheet; 15. Annular groove; 16. Connector No. 2; 17. Hose No. 2; 18. Support column; 19. Linkage rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example 1

[0023] This utility model provides a rubber-coated waterproof metal flexible tube for use with cables, such as Figures 1 to 5 As shown, there are two hoses, No. 1 and No. 2. One end of No. 1 hose is fitted with No. 1 connector seat 2, and one end of No. 2 hose 17 is fitted with No. 2 connector seat 16. Multiple sliding grooves 7 are opened on the outer surface of both No. 1 hose 1 and No. 2 hose 17. Multiple installation holes 8 are opened on the inner surface of both No. 1 connector seat 2 and No. 2 connector seat 16. Screws 5 are connected through the inner surface of both No. 1 connector seat 2 and No. 2 connector seat 16 at the position corresponding to the installation hole 8. A fixing protrusion 3 is fixedly installed at one end of each screw 5. A No. 1 spring 4 is installed between the opposite surfaces of screw 5 and No. 2 connector seat 16, and the No. 1 spring 4 is fitted on the outside of screw 5. A linkage rod 19 is fixedly installed on the side of each fixing protrusion 3. Several linkage rods 19 pass through the opposite No. 1 connector seat 2 or No. 2 connector seat 16. An airbag 6 is fixedly installed on the inner surface of No. 1 connector seat 2 at one end of No. 1 hose 1.

[0024] An internal threaded connector 11 is slidably installed inside the No. 1 connector seat 2. Multiple support columns 18 are fixedly installed at the bottom of the internal threaded connector 11. An external threaded connector 12 is connected to the inner surface of the internal threaded connector 11 by threads. One end of the external threaded connector 12 is fixedly installed inside the No. 2 connector seat 16.

[0025] like Figure 1 and 3 As shown, the No. 1 connector seat 2 has an annular groove 15 inside. One end of the sliding piece 9 and the internal threaded connector 11 are both located inside the annular groove 15, providing space for the installation of the sliding piece 9 and the internal threaded connector 11, so that the sliding piece 9 and the internal threaded connector 11 can slide in the annular groove 15.

[0026] like Figure 1 and 3 As shown, a convex ring 13 is provided on the inner surface of the internal threaded connector 11, and a rubber sheet 14 is fixedly installed on the top of the convex ring 13. The plasticity of the rubber sheet 14 can alleviate the damage to the external threaded connector 12 caused by excessive rotational force when the internal threaded connector 11 is installed with the external threaded connector 12, and also plays a limiting role.

[0027] like Figure 1 and 3As shown, the second hose 17 and the second connector 16 are connected by screws 5. The first spring 4 makes the fixing protrusion 3 fit tightly against the inside of the hose, so that the hose cannot move when connected to the connector, thus solving the problem of the hose and connector becoming loose or falling off.

[0028] like Figure 1 and 3 As shown, the opposite ends of hose 1 and hose 17 are provided with an inclined angle, so that when hose 1 is slidably installed into connector 2, the fixing protrusion 3 can slide smoothly along the slope to the outer surface of the hose, preventing the hose 1 from being stuck and unable to slide.

[0029] like Figure 1 and 3 As shown, a second spring 10 is installed between the opposing surfaces of several support columns 18 and the internal threaded connector 11. A sliding piece 9 is fixedly installed between the other ends of several second springs 10. When the second spring 10 in the first connector seat 2 expands, the second spring 10 presses towards both ends, so that a compressive force is formed at the bottom of the support column 18, which pushes the internal threaded connector 11 upward, and finally makes the internal threaded connector 11 fit tightly with the quasi-external threaded connector 12, so that the problem of loosening does not occur.

[0030] Working principle: Hose 1 is slid into connector 2 and hose 17 is slid into connector 16, causing the fixing protrusion 3 to be compressed and slide into the mounting hole 8. During this process, the fixing protrusion 3 pushes the screw 5 towards the outer surface of connector 2 and connector 16. At this time, spring 4 is compressed and deformed. Then, hose 1 slides into the bottom of connector 2, and hose 17 slides into connector 16. At this time, the two airbags 6 are respectively compressed by hose 1 and hose 2. The compression of the second hose 17 causes the airbag 6 to inflate due to the compression of the first hose 1 and the second hose 17. This inflates the airbag 6, blocking the gaps between the first hose 1 and the first connector 2, as well as between the second hose 17 and the second connector 16. This prevents rainwater from entering the hoses through the gaps between the first connector 2 and the first hose 1, and between the second hose 17 and the second connector 16, thus solving the problem of cable moisture. At the same time, the sliding groove 7 slides to the opposite end of the fixed protrusion 3, causing the fixed protrusion 3 to lose its compressive force, thereby causing the first spring 4 to lose its compressive force. The pressure expands, pushing screw 5 into the sliding groove 7, causing the sliding groove 7 to lock into the first hose 1 and prevent it from moving. To disassemble the first hose 1, press one end of the connecting rod 19 towards the inner surface of the first hose 1. The connecting rod 19 rotates around its center axis, causing the other end of the connecting rod 19 to move the fixing protrusion 3 towards screw 5. At this time, the first spring 4 is subjected to a compressive force, causing it to deform and contract. The reaction force at both ends of the first spring 4 is applied to screw 5, causing the first spring 4 to push screw 5 towards the mounting point. The movement inside hole 8 causes hose 1 and hose 17 to lose their connection and fixation by screw 5, thus detaching. Then, the internal threaded connector 11 is aligned with the external threaded connector 12 and rotated. As the internal threaded connector 11 and external threaded connector 12 rotate and overlap, the second spring 10 inside connector seat 2 expands. The second spring 10 presses against both ends, creating a compressive force at the bottom of the support column 18, which pushes the internal threaded connector 11 upward. Finally, the internal threaded connector 11 and the quasi-external threaded connector 12 fit tightly together, preventing the problem of loosening.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A jacketed waterproof metal hose for cable use, characterized by, include: Hose 1 (1) and hose 2 (17), one end of hose 1 (1) is fitted with connector 2, and one end of hose 2 (17) is fitted with connector 2 (16). Both hose 1 (1) and hose 2 (17) have multiple sliding grooves (7) on their outer surfaces. Both connector 2 (1) and connector 2 (16) have multiple mounting holes (8) on their inner surfaces. The inner surfaces of connector 2 (1) and connector 2 (16) are positioned opposite the mounting holes (8). A screw (5) is connected through the screw (5). A fixing protrusion (3) is fixedly installed at one end of each screw (5). A spring (4) is installed between the screw (5) and the opposite face of the second connector (16). A linkage rod (19) is fixedly installed on the side of each fixing protrusion (3). Several linkage rods (19) pass through the opposite first connector (2) or second connector (16). An airbag (6) is fixedly installed on the inner surface of the first connector (2) at one end of the first hose (1). The No. 1 connector seat (2) has an internal threaded connector (11) slidably installed inside. The bottom end of the internal threaded connector (11) is fixedly installed with multiple support columns (18). The inner surface of the internal threaded connector (11) is connected to an external threaded connector (12) by a thread. One end of the external threaded connector (12) is fixedly installed inside the No. 2 connector seat (16). A second spring (10) is installed between the opposite faces of several of the support columns (18) and the internal threaded joint (11), and a sliding plate (9) is fixedly installed between the other ends of several of the second springs (10).

2. A jacketed waterproof metal flexible pipe for electrical cable use according to claim 1, characterized in that, The No. 1 connector seat (2) has an annular groove (15) inside, and one end of the sliding piece (9) and the internal thread connector (11) are both located inside the annular groove (15).

3. A jacketed waterproof metal flexible pipe for electrical cable use according to claim 2, characterised in that, The inner surface of the internal threaded connector (11) is provided with a convex ring (13), and a rubber sheet (14) is fixedly installed on the top of the convex ring (13).

4. A jacketed waterproof metal flexible pipe for electrical cable use according to claim 1, characterized in that, The second hose (17) and the second connector (16) are connected by screws (5).

5. A jacketed waterproof metal flexible pipe for electrical cable use according to claim 2, wherein The first hose (1) and the second hose (17) have an inclined angle at one end.

Images