Cable protection device and high-temperature-resistant cable

Abstract

The invention discloses a cable protection device which comprises a protection sleeve arranged outside a cable body. The protection sleeve comprises a sleeve body, a plurality of fixing frames are arranged on the inner side wall of the sleeve body at intervals, a first installation cavity is formed in the inner side of each fixing frame, the first installation cavities are formed in the side away from the cable body, and first buffer pieces are arranged in the first installation cavities. The first buffer piece comprises a buffer strip and a first spring connecting the buffer strip with the inner wall of the second installation cavity, a through hole is formed in the position, corresponding to the buffer strip, of the sleeve body, and one end of the buffer strip extends out of the sleeve body through the through hole in the natural state. Through the buffer piece I and the detachable locking ring, the state of the buffer strip can be quickly adjusted according to the specific installation stage (such as embedding and overhead) of the cable, necessary support can be provided in the laying process, the compact form can be kept after fixation, the occupied space is reduced, and the safety is improved. Heat insulation protection is provided for the cable body through the arranged heat insulation sleeve.

Description

Technical Field

[0001] The invention belongs to the technical field of cables, and in particular relates to a cable protection device and a high-temperature resistant cable. Background Art

[0002] In the field of modern electrical engineering and communications, cables are important media for transmitting power or signals. Their performance and service life directly affect the stability and reliability of the entire system.

[0003] However, in actual applications, cables often face various risks of physical damage, such as dragging, heavy pressure, and throwing during installation, as well as environmental factors (such as high temperature) during use. Especially for cables laid in complex terrain or harsh environments, traditional designs are difficult to meet the specific needs of different application scenarios. Summary of the Invention

[0004] The present invention aims to solve the problems in the prior art and proposes the following technical solutions:

[0005] The present invention provides a cable protection device, comprising:

[0006] A protective sleeve arranged on the outside of the cable body;

[0007] The protective sleeve includes a sleeve body, a plurality of fixing frames are arranged at intervals on the inner wall of the sleeve body, an installation cavity 1 is formed on the inner side of the fixing frame, the installation cavity 1 is arranged on the side away from the cable body, a buffer component 1 is arranged in the installation cavity 1, the buffer component 1 includes a buffer strip and a spring 1 connecting it to the inner wall of the installation cavity 2, a through hole is opened on the sleeve body at a position corresponding to the buffer strip, and one end of the buffer strip extends to the outside of the sleeve body through the through hole in a natural state.

[0008] As a preferred embodiment of the above technical solution, it also includes a locking ring that is detachably mounted on the outside of the protective sleeve. When the locking ring is mounted on the outside of the protective sleeve, the buffer strip is squeezed by the locking ring and retracted into the installation cavity inside the sleeve.

[0009] As a preferred embodiment of the above technical solution, the locking ring includes symmetrically arranged half ring bodies, both ends of the half ring bodies are provided with connecting parts, and also includes locking pieces, which lock the corresponding connecting parts.

[0010] As a preferred embodiment of the above technical solution, it also includes a heat insulation sleeve arranged between the cable body and the protective sleeve, and the heat insulation sleeve is tightly wrapped around the outside of the cable body.

[0011] As a preferred embodiment of the above technical solution, a second installation cavity is further formed on the inner side of the fixing frame, and the second installation cavity is arranged on a side close to the cable body. A second buffer is arranged in the second installation cavity, and the second buffer includes a buffer plate and a spring connecting it to the inner wall of the second installation cavity. A flexible resistance plate is provided at the end of the buffer plate away from the second spring, and the flexible resistance plate is in contact with the thermal insulation sleeve.

[0012] The present invention also provides a high temperature resistant cable, comprising any one of the cable protection devices described above.

[0013] The beneficial effects of the present invention are:

[0014] (1) The present invention provides a buffer member and a detachable locking ring, which can quickly adjust the state of the buffer strip according to the specific installation stage of the cable (such as buried or overhead), thereby providing necessary support during the laying process and maintaining a compact shape after fixing, thereby reducing space occupancy and improving safety.

[0015] (2) The present invention provides a double-layer buffer structure by providing buffer member 1 and buffer member 2, which respectively absorb external impacts of different intensities, thereby ensuring that the cable can be effectively protected even when subjected to strong impacts.

[0016] (3) The present invention provides heat insulation protection for the cable body by setting the heat insulation sleeve to prevent the cable body from being damaged by external high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The diagram shows the main view of the protective device in the embodiment. Figure 1 ;

[0018] Figure 2 The figure shows a cross-sectional view of the protective device in the embodiment. Figure 1 ;

[0019] Figure 3 Shown is Figure 2 A schematic diagram of the structure enlargement at point A;

[0020] Figure 4 The diagram shows a schematic top view of the protective device in the embodiment. Figure 1 ;

[0021] Figure 5 Shown is a schematic diagram of a buffer strip in an embodiment (side view);

[0022] Figure 6 FIG. 1 shows a schematic diagram of a second buffer member in an embodiment (side view);

[0023] Figure 7 The diagram shows the main view of the protective device in the embodiment. Figure 2 ;

[0024] Figure 8 Shown is a schematic diagram of a locking ring in an embodiment;

[0025] Figure 9 The figure shows a cross-sectional view of the protective device in the embodiment. Figure 2 ;

[0026] Figure 10 The diagram shows a schematic top view of the protective device in the embodiment. Figure 2 ;

[0027] Figure numerals: 10, cable body; 20, thermal insulation sleeve; 30, protective sleeve; 31, sleeve body; 32, fixing frame; 33, installation cavity one; 34, installation cavity two; 35, buffer strip; 36, spring one; 37, perforation; 38, buffer plate; 39, flexible contact plate; 40, locking ring; 41, semi-ring body; 42, connecting part; 43, locking piece. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] Example

[0030] like Figure 1 As shown, Figure 1 The diagram shows the main view of the protective device in the embodiment. Figure 1 ;

[0031] The device includes:

[0032] The heat insulation sleeve 20 and the protective sleeve 30 are sequentially arranged on the outside of the cable body 10 , and the heat insulation sleeve 20 is tightly wrapped around the outside of the cable body 10 .

[0033] The thermal insulation sleeve 20 provides the main thermal insulation protection for the cable body 10 to prevent the cable body 10 from being damaged by external high temperature. The thermal insulation sleeve 20 is usually made of materials with excellent thermal insulation properties. These materials can effectively reduce the heat conduction from the outside to the inside of the cable body 10, thereby protecting the cable body 10 from high temperature. Materials such as ceramic fiber, glass fiber, etc.

[0034] The protective sleeve 30 is arranged at the outermost side and plays the role of heat insulation, pressure resistance and buffering for the cable body 10.

[0035] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, Figure 2 The figure shows a cross-sectional view of the protective device in the embodiment. Figure 1 ; Figure 3 Shown is Figure 2 A schematic diagram of the structure enlargement at point A; Figure 4 The diagram shows a schematic top view of the protective device in the embodiment. Figure 1 ; Figure 5 Shown is a schematic diagram of a buffer strip in an embodiment (side view).

[0036] The protective sleeve 30 includes a sleeve body 31. A plurality of fixing frames 32 are spaced apart on the inner wall of the sleeve body 31. An installation cavity 1 33 is formed inside the fixing frame 32. The installation cavity 1 33 is located on a side away from the cable body 10. A buffer member 1 is disposed in the installation cavity 13. The buffer member 1 includes a buffer strip 35 and a spring 1 36 connecting the buffer strip 35 to the inner wall of the installation cavity 2 34. A through-hole 37 is formed on the sleeve body 31 at a position corresponding to the buffer strip 35. In a natural state, one end of the buffer strip 35 extends through the through-hole 37 to the outside of the sleeve body 31.

[0037] A plurality of fixing frames 32 are evenly distributed on the inner wall of the sleeve 31 . In this embodiment, eight groups of fixing frames 32 and buffer strips 35 are provided.

[0038] The state in which the buffer strip 35 extends to the outside of the sleeve 31 is suitable for the process of burying and overhead installation of the cable: the buffer strip 35 extending to the outside of the sleeve 31 has good supporting performance, thereby supporting the entire cable off the ground, and can effectively avoid the problem of the cable colliding and rubbing with the ground when being dragged, pressed and thrown, reducing the possibility of cable damage and ensuring the safety of the cable when in use.

[0039] There is a gap between the protective sleeve 30 and the thermal insulation sleeve 20, forming an air isolation layer, which helps to further reduce the heat conduction to the cable body 10 and improve the overall thermal insulation performance of the cable.

[0040] like Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 As shown, Figure 7 The diagram shows the main view of the protective device in the embodiment. Figure 2 ; Figure 8 Shown is a schematic diagram of a locking ring in an embodiment; Figure 9 The figure shows a cross-sectional view of the protective device in the embodiment. Figure 2 ; Figure 10 The diagram shows a schematic top view of the protective device in the embodiment. Figure 2 .

[0041] The protective sleeve 31 further includes a locking ring 40 that is detachably mounted on the outside of the protective sleeve 30 . When the locking ring 40 is mounted on the outside of the protective sleeve 30 , the buffer strip 35 is squeezed and retracted into the mounting cavity 1 33 inside the sleeve body 31 by the locking ring 40 .

[0042] The locking ring 40 includes symmetrically arranged half ring bodies 41 , with connecting portions 42 provided at both ends thereof, and further includes locking members 43 , which lock the corresponding connecting portions 42 .

[0043] The locking ring 40 is provided to limit the external force applied to the buffer strip 35 so that the buffer strip 35 compresses the spring 1 36 and then retracts into the installation cavity 1 33 through the through hole 37 .

[0044] This state is applicable to the fixed state of the cable after the cable is buried and suspended. At this time, the exposed part of the buffer strip 35 is completely hidden, so that the cable maintains a compact shape after being fixed, reducing space occupancy, and even if the buffer strip 35 is retracted, the spring 1 36 still maintains the pre-tightening force. When subjected to external impact or vibration, the buffer strip 35 can still absorb energy through the elastic deformation of the spring 1 36 to protect the cable body 10.

[0045] After the locking ring 40 is removed, the buffer strip 35 automatically pops out and can provide support and anti-collision functions again, which is suitable for temporary support during cable laying.

[0046] In this embodiment, a mounting hole is provided on the connecting portion 42 of the semi-ring body 41 , and the locking member 43 is a bolt and a nut that cooperate with each other, through which the two semi-ring bodies 41 can be quickly connected and disassembled.

[0047] like Figure 3 、 Figure 6 As shown, Figure 3 Shown is Figure 2 A schematic diagram of the structure enlargement at point A; Figure 6 FIG. 1 shows a schematic diagram of a second buffer member in an embodiment (side view);

[0048] A second installation cavity 34 is also formed on the inner side of the fixing frame 32. The second installation cavity 34 is arranged on a side close to the cable body 10. A second buffer is arranged in the second installation cavity 34. The second buffer includes a buffer plate 38 and a spring 2 connecting it to the inner wall of the second installation cavity 34. A flexible resistance plate 39 is provided at the end of the buffer plate 38 away from the spring 2. The flexible resistance plate 39 is in contact with the thermal insulation sleeve 20.

[0049] The flexible contact plate 39 is in an arc shape that matches the shape of the thermal insulation sleeve 20;

[0050] The end of the sleeve 31 is fixedly connected to the cable body 10, and plays a major supporting and fixing role for the cable body 10. Through the arrangement of the second installation cavity 34, the buffer plate 38, the flexible resistance plate 39 and the second spring, the cable body 10 can be further supported and fixed. When the cable is vibrated or slightly squeezed, the elastic deformation of the second spring can further reduce the direct impact on the cable body 10, thereby providing further buffering protection.

[0051] When the cable is subjected to external impact, the outer layer's buffer strip 35 will first absorb the impact. If the impact force is large and transmitted to the inner layer, the remaining energy will be further absorbed by the buffer plate 38 and spring 2. At the same time, the flexible contact plate 39 ensures a smooth transition with the contact surface of the cable body 10, minimizing damage to the cable body 10.

[0052] Working principle: The thermal insulation sleeve 20 is tightly wrapped around the cable body 10 to provide basic thermal insulation protection. Depending on the actual situation, this device can have two states:

[0053] During the laying process: the buffer strip 35 extends to the outside of the protective cover 30 through the perforation 37 to provide support, preventing the cable from directly contacting the ground or other hard objects, and reducing the risk of damage caused by dragging, heavy pressure, etc.

[0054] After laying is completed: when the cable is buried or suspended and needs to be fixed, the locking ring 40 is placed on the outside of the protective sleeve 30. At this time, the locking ring 40 applies pressure to the buffer strip 35, causing it to compress the spring 1 36 and retract into the installation cavity 1 33 through the through hole 37, achieving a fixing effect while retaining a certain buffering capacity to prevent minor collisions.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A cable protection device, characterized in that: include: A protective sleeve (30) disposed outside the cable body; The protective sleeve (30) includes a sleeve body (31), a plurality of fixing frames (32) are arranged at intervals on the inner wall of the sleeve body (31), an installation cavity (33) is formed on the inner side of the fixing frame (32), the installation cavity (33) is arranged on the side away from the cable body, a buffer component (33) is arranged in the installation cavity (33), the buffer component (35) includes a buffer strip (35) and a spring (36) connecting the buffer strip to the inner wall of the installation cavity (34), a through hole (37) is opened on the sleeve body (31) at a position corresponding to the buffer strip (35), and in a natural state, one end of the buffer strip (35) extends to the outside of the sleeve body (31) through the through hole (37).

2. The cable protection device according to claim 1, characterized in that The invention also includes a locking ring (40) which is detachably mounted on the outside of the protective sleeve (30). When the locking ring (40) is mounted on the outside of the protective sleeve (30), the buffer strip (35) is squeezed and retracted by the locking ring (40) into the installation cavity (33) inside the sleeve body (31).

3. The cable protection device according to claim 2, characterized in that: The locking ring (40) comprises symmetrically arranged half ring bodies (41), both ends of which are provided with connecting parts (42), and further comprises a locking member (43), wherein the locking member (43) locks the corresponding connecting part (42).

4. The cable protection device according to claim 2, characterized in that: It also includes a heat-insulating sleeve (20) arranged between the cable body and the protective sleeve (30), and the heat-insulating sleeve (20) is tightly wrapped around the outside of the cable body.

5. The cable protection device according to claim 1, characterized in that A second installation cavity (34) is also formed on the inner side of the fixing frame (32). The second installation cavity (34) is arranged on a side close to the cable body. A second buffer is arranged in the second installation cavity (34). The second buffer includes a buffer plate (38) and a second spring connected to the inner wall of the second installation cavity (34). A flexible contact plate (39) is provided at one end of the buffer plate (38) away from the second spring. The flexible contact plate (39) contacts and cooperates with the thermal insulation sleeve (20).

6. High temperature resistant cable, characterized in that, The invention comprises a cable protection device according to any one of claims 1 to 5.

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