High-flame-retardant cable protection tube

Abstract

The utility model relates to the technical field of cable protection pipes, in particular to a high-flame-retardance cable protection pipe, which optimizes the installation mode of a sliding block and a sliding rail, enables the sliding block and the sliding rail to be rapidly installed and detached, and improves the use convenience. Comprising an outer pipe, three sliding rails are installed on the inner wall of the outer pipe, each sliding rail is slidably connected with a sliding block, an air bag is installed on each sliding block, and a plurality of elastic rings are installed on each air bag; the sliding block and the sliding rail are connected through a dismounting and mounting mechanism, the dismounting and mounting mechanism comprises a locking part and an unlocking part, the locking part comprises an insertion block elastically and slidably connected with the sliding rail, an insertion groove is formed in the sliding block, and when the sliding rail and the sliding block are fixed in position, one end of the insertion block is inserted into the insertion groove, and the end, extending into the insertion groove, of the insertion block is provided with an inclined plane.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection tubes, in particular to a highly flame-retardant cable protection tube. Background Art

[0002] Highly flame-retardant cable protection conduit is a piping system specifically designed to protect wires and cables. Typically made of high-temperature-resistant materials, this conduit offers excellent fire protection, effectively preventing the spread of flames and reducing the production of smoke and toxic gases. It is suitable for environments requiring high-security protection, such as industrial facilities, rail transit, and petrochemical sites, ensuring the safety and reliability of cable systems under extreme conditions. Highly flame-retardant cable protection conduit not only provides basic mechanical protection but also meets stringent safety standards and regulations.

[0003] The invention patent with application number 202310546308.5 discloses a cable protection tube, including an outer tube, an inner tube, a cable, an airbag and an elastic ring. The cable is installed on the inner side of the inner tube, and the inner tube is installed on the inner side of the outer tube; the airbag and the elastic ring can be positioned by setting slide rails and sliders as well as bolts and nuts, and the three groups of airbags do not interfere with each other and can be replaced separately, thereby reducing the cost of replacement. In addition, the outer tube can also play a certain protective role for the airbag, so that it will not be punctured by sharp objects, so its service life is also longer. Both the airbag and the elastic ring are relatively common products, with simple assembly and long service life, so they can be mass-produced and used. After the airbag is filled with air, when the outer tube is subjected to external pressure, the airbag can help the cable to slow down or resist the external pressure. With the use of the elastic ring, the pressure resistance and shock absorption performance of the entire cable protection tube can be further enhanced.

[0004] The above device has the following shortcomings: the slider and the slide rail are connected by bolts and nuts, which makes positioning difficult, resulting in difficulty in installing the bolts and nuts, and because the bolts and nuts are inside the outer tube, there is also the problem of inconvenient operation. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a highly flame-retardant cable protection tube, optimizes the installation method of the slider and the slide rail, enables both to be quickly installed and removed, and improves ease of use.

[0006] The highly flame-retardant cable protection tube of the utility model comprises an outer tube, the inner wall of which is installed with three groups of slide rails, each group of slide rails is slidably connected with a slider, the slider is installed with an airbag, and several groups of elastic rings are installed on the airbag; the slider and the slide rail are connected through a disassembly and assembly mechanism, and the disassembly and assembly mechanism includes a locking part and an unlocking part, the locking part includes an insert block elastically slidably connected to the slide rail, and a slot is provided on the slider. When the positions of the slide rail and the slider are fixed, one end of the insert block is inserted into the slot, and the end of the insert block extending into the slot has an inclined surface.

[0007] As a preferred solution of the present invention, the end of the insert extending into the slot is also provided with a flat surface, the inclined surface is connected to the flat surface, and when the positions of the slide rail and the slider are fixed, the flat surface contacts the inner wall of the slot.

[0008] As a preferred solution of the present invention, the slide rail is provided with a through hole. When the slide rail and the slider are fixed in position, the through hole is connected to the slot. A cover plate is fixed to the end of the through hole away from the slider.

[0009] The inserting block is fixed with a connecting rod passing through the cover plate, the connecting rod is sleeved with a spring, and two ends of the spring are respectively in contact with the cover plate and the inserting block.

[0010] As a preferred solution of the present invention, the locking part also includes a limiting ring, which is fixedly connected to the connecting rod and is located outside the through hole. When the slide rail and the slider are fixed, the limiting ring contacts the cover plate, and the two ends of the inclined surface are respectively located in the slot and the through hole.

[0011] As a preferred solution of the present invention, the unlocking portion includes a guide ring 1 and a guide ring 2 connected to the slide rail, the guide ring 2 is located between the cover plate and the guide ring 1, and one end of the connecting rod is located outside the through hole and between the end of the guide ring 2 and the slide rail;

[0012] The unlocking portion further includes a connecting rope, one end of which is connected to the end of the connecting rod outside the through hole, and the other end of the connecting rope passes through the second guide ring and the first guide ring.

[0013] As a preferred solution of the present invention, a limiting portion is fixed to the other end of the connecting rope.

[0014] As a preferred solution of the present invention, the limiting portion is a sphere.

[0015] As a preferred solution of the present invention, the locking portion includes a baffle fixedly connected to one end of the slider, and when the positions of the slide rail and the slider are fixed, the baffle contacts the end of the slide rail.

[0016] As a preferred solution of the present invention, the end of the airbag is connected to an air nozzle.

[0017] As a preferred solution of the present invention, the cover plate is connected to the slide rail via screws.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present device improves the fixing method of the slider and the slide rail, the slider can be automatically locked during the sliding process, and there is no need for precise positioning, thereby improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a structural diagram of the slider, slide rail and disassembly and assembly mechanism;

[0021] Figure 3 yes Figure 2 Front view of

[0022] Figure 4 yes Figure 3 Cross-section of the middle AA section;

[0023] Markings in the accompanying drawings: 1. outer tube; 2. slide rail; 3. slider; 4. airbag; 5. elastic ring; 6. plug-in block; 7. slot; 8. inclined plane; 9. plane; 10. through hole; 11. cover plate; 12. connecting rod; 13. spring; 14. limiting ring; 15. guide ring 1; 16. guide ring 2; 17. connecting rope; 18. limiting part; 19. baffle; 20. air nozzle. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "embodiment" as used herein refers to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example

[0028] Reference Figures 1-4This embodiment provides a highly flame-retardant cable protection tube, comprising an outer tube 1, the outer tube 1 being made of flame-retardant material, the inner wall of the outer tube 1 being provided with three sets of slide rails 2, each set of slide rails 2 being slidably connected to a slider 3, the slider 3 being provided with an air bag 4, the end of the air bag 4 being connected to an air nozzle 20, the air being inflated into the air bag 4 through the air nozzle 20, the air bag 4 being provided with several sets of elastic rings 5, the elastic rings 5 ​​being in direct contact with the outer wall of the cable to be protected, and acting as a buffer; the slider 3 being connected to the slide rail 2 by a disassembly and assembly mechanism, the cross section of the slider 3 being T Type, prevents the slider 3 from being separated from the slide rail 2, the disassembly and assembly mechanism includes a locking part and an unlocking part, the locking part includes an insert 6 elastically slidably connected to the slide rail 2, the sliding direction of the insert 6 is perpendicular to the slider 3, more specifically, the slide rail 2 is provided with a through hole 10, when the slide rail 2 and the slider 3 are fixed in position, the through hole 10 is connected to the slot 7, the through hole 10 is fixed with a cover plate 11 at one end away from the slider 3 by a screw, the insert 6 is fixed with a connecting rod 12 passing through the cover plate 11, the connecting rod 12 is provided with a spring 13, and the two ends of the spring 13 The slider 3 is provided with a slot 7. When the slide rail 2 and the slider 3 are fixed, one end of the insert block 6 is inserted into the slot 7 under the elastic force of the spring 13. The end of the insert block 6 extending into the slot 7 has an inclined surface 8. The end of the insert block 6 extending into the slot 7 also has a flat surface 9. The inclined surface 8 is connected to the flat surface 9. When the slide rail 2 and the slider 3 are fixed, the flat surface 9 contacts the inner wall of the slot 7. The locking portion also includes a limiting ring 14. The limiting ring 14 It is fixedly connected to the connecting rod 12, and the limiting ring 14 is located outside the through hole 10. When the slide rail 2 and the slider 3 are fixed in position, the limiting ring 14 contacts the cover plate 11, and the two ends of the inclined surface 8 are respectively located in the slot 7 and the through hole 10; the locking portion includes a baffle 19 fixedly connected to one end of the slider 3. When the slide rail 2 and the slider 3 are fixed in position, the baffle 19 contacts the end of the slide rail 2. When the slider 3 is installed, the baffle 19 contacts the end of the slide rail 2. At this time, the through hole 10 is facing the slot 7, and the disassembly mechanism is actuated to fix the slider 3 to the slide rail 2;

[0029] In this embodiment, when the slider 3 is fixed to the slide rail 2, under the elastic force of the spring 13, the limit ring 14 contacts the cover plate 11, and one end of the plug block 6 is inserted into the slot 7. At this time, the two ends of the inclined surface 8 are respectively in the slot 7 and the through hole 10. At the same time, the baffle 19 contacts the end of the slide rail 2, and the slider 3 cannot move backward. The inner wall of the slot 7 contacts the side wall of the plug block 6, and the plug block 6 cannot be separated from the slot 7. The slider 3 cannot move forward, thereby playing a fixing role. When the slider 3 needs to be removed, the unlocking part is operated to move the connecting rod 12, the limit ring 14 and the plug block 6 away from the slot 7, and then Just pull out the slider 3; when installing the slider 3, under the elastic force of the spring 13, the limit ring 14 contacts the cover plate 11, and at this time one end of the inclined surface 8 is in the through hole 10, push the slider 3 into the slide rail 2, and the end of the slider 3 squeezes a part of the inclined surface 8. Because it is the inclined surface 8, the insert block 6 can be kept away from the slider 3, and then the slider 3 contacts the plane 9. The purpose of setting the plane 9 is to reduce wear. When the baffle 19 contacts the end of the slide rail 2, the through hole 10 is opposite to the slot 7. Under the action of the spring 13, the insert block 6 is inserted into the slot 7 to fix the slider 3 to the slide rail 2.

[0030] As a preferred solution of the present invention, the unlocking portion includes a guide ring 15 and a guide ring 2 16 connected to the slide rail 2, the guide ring 2 16 is located between the cover plate 11 and the guide ring 15, and the connecting rod 12 is located outside the through hole 10 and one end is located between the end of the guide ring 2 16 and the slide rail 2. Figure 2 As shown, the connecting line of the connecting rod 12 at one end outside the through hole 10, the ring of the second guide ring 16 and the ring of the first guide ring 15 forms a V shape; the unlocking part also includes a connecting rope 17, one end of the connecting rope 17 is connected to the end of the connecting rod 12 at the outside of the through hole 10, and the other end of the connecting rope 17 passes through the second guide ring 16 and the first guide ring 15; the other end of the connecting rope 17 is fixed with a limiting part 18, and the cross-section of the limiting part 18 is large, which can prevent the connecting rope 17 from detaching from the guide ring 15; the limiting part 18 is a sphere.

[0031] In this embodiment, if Figure 4 As shown, when the slider 3 and the slide rail 2 need to be disassembled, the ball is pulled to move the connecting rope 17 toward the outside of the outer tube 1. Since the connecting rod 12 is at one end outside the through hole 10 and the line connecting the ring of the guide ring 2 16 and the ring of the guide ring 15 forms a V shape, the plug 6 can be driven by the connecting rope 17 to move away from the slider 3. After the plug 6 is separated from the slot 7, the limit part 18 is released, and under the elastic force of the spring 13, each component returns to its initial state.

[0032] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A highly flame-retardant cable protection tube, comprising an outer tube (1), wherein three sets of slide rails (2) are installed on the inner wall of the outer tube (1), each set of slide rails (2) is slidably connected to a slider (3), the slider (3) is installed with an air bag (4), and the air bag (4) is installed with a plurality of elastic rings (5); characterized in that: The slider (3) is connected to the slide rail (2) via a disassembly mechanism, the disassembly mechanism comprising a locking portion and an unlocking portion, the locking portion comprising an insert block (6) elastically slidably connected to the slide rail (2), a slot (7) being provided on the slider (3), and when the slide rail (2) and the slider (3) are fixed in position, one end of the insert block (6) is inserted into the slot (7), and the end of the insert block (6) extending into the slot (7) is provided with an inclined surface (8).

2. The highly flame-retardant cable protection tube according to claim 1, characterized in that: The end of the insert (6) extending into the slot (7) is also provided with a plane (9), the inclined surface (8) is connected to the plane (9), and when the slide rail (2) and the slider (3) are fixed in position, the plane (9) contacts the inner wall of the slot (7).

3. The highly flame-retardant cable protection tube according to claim 2, characterized in that: The slide rail (2) is provided with a through hole (10). When the slide rail (2) and the slider (3) are fixed in position, the through hole (10) is communicated with the slot (7). A cover plate (11) is fixed to one end of the through hole (10) away from the slider (3). The insert block (6) is fixed with a connecting rod (12) passing through the cover plate (11), and the connecting rod (12) is sleeved with a spring (13), and two ends of the spring (13) are in contact with the cover plate (11) and the insert block (6) respectively.

4. The highly flame-retardant cable protection tube according to claim 3, characterized in that: The locking portion further comprises a limiting ring (14), which is fixedly connected to the connecting rod (12). The limiting ring (14) is located outside the through hole (10). When the slide rail (2) and the slider (3) are fixed in position, the limiting ring (14) contacts the cover plate (11), and the two ends of the inclined surface (8) are respectively located in the slot (7) and the through hole (10).

5. The highly flame-retardant cable protection tube according to claim 4, characterized in that: The unlocking portion comprises a guide ring 1 (15) and a guide ring 2 (16) connected to the slide rail (2), the guide ring 2 (16) being located between the cover plate (11) and the guide ring 1 (15), and the connecting rod (12) being located outside the through hole (10) with one end being located between the end of the guide ring 2 (16) and the slide rail (2); The unlocking portion further comprises a connecting rope (17), one end of which is connected to an end of the connecting rod (12) outside the through hole (10), and the other end of the connecting rope (17) passes through the second guide ring (16) and the first guide ring (15).

6. The highly flame-retardant cable protection tube according to claim 5, characterized in that: The other end of the connecting rope (17) is fixed with a limiting portion (18).

7. The highly flame-retardant cable protection tube according to claim 6, characterized in that: The limiting portion (18) is a sphere.

8. The highly flame-retardant cable protection tube according to claim 4, characterized in that: The locking portion comprises a baffle (19) fixedly connected to one end of the slider (3); when the positions of the slide rail (2) and the slider (3) are fixed, the baffle (19) contacts the end of the slide rail (2).

9. The highly flame-retardant cable protection tube according to claim 1, wherein: The end of the air bag (4) is connected to an air nozzle (20).

10. The highly flame-retardant cable protection tube according to claim 3, characterized in that: The cover plate (11) is connected to the slide rail (2) via screws.

Images