A pressure-resistant cable

Abstract

The present invention relates to the field of cable technology, and specifically discloses a pressure-resistant cable, including: a cable core, a sleeve, an airbag and a non-Newtonian fluid, an annular cavity is provided between the cable core and the sleeve, a fixed ring sleeved on the outside of the cable core is provided in the annular cavity, a plurality of support members uniformly distributed along its circumference are slidably mounted on the fixed ring, the two ends of the support members are respectively in contact with the outer wall of the cable core and the inner wall of the sleeve, and a reset module is provided between two adjacent support members. Beneficial effects of the present invention: the telescopic plate squeezes the non-Newtonian fluid, changes the direction of the impact force, pushes the support members on the adjacent two sides to slide to both sides, transmits the impact force to the non-Newtonian fluid in the adjacent chamber, spreads the impact force to the periphery, disperses and buffers the force, can play an effective force release role, and forms force dispersion and multi-stage buffering. After the impact is over, the non-Newtonian fluid can be reset, which effectively ensures the continuous pressure resistance of the cable core.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a compression-resistant cable. Background Art

[0002] Cables include power cables, compression cables, compensating cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wire and an insulating layer, used to connect circuits, electrical appliances, etc.

[0003] A Chinese patent with authorization announcement number CN117637240B discloses a track-based pressure-resistant and impact-resistant cable, comprising: an outer sleeve and a cable core, wherein the cable core is arranged inside the outer sleeve, and an annular cavity is formed between the cable core and the outer sleeve, wherein the annular cavity is filled with a non-Newtonian fluid and a gaseous filler, wherein the non-Newtonian fluid can wrap the cable core, and the gaseous filler is located at the upper part of the annular cavity; the track-based pressure-resistant and impact-resistant cable of the patent document, when subjected to impact force, the outer sleeve squeezes the gaseous filler, the gaseous filler is squeezed and applies downward pressure to the non-Newtonian fluid, and the gaseous filler can increase the force-bearing area of ​​the non-Newtonian fluid, thereby enhancing the impact resistance of the cable.

[0004] In the above technical solution, non-Newtonian fluid is used as a buffer to reduce the impact on the cable core, so as to protect the cable. However, as the cable shell deforms, the non-Newtonian fluid also flows slowly to adapt to the deformation. After receiving the impact, the non-Newtonian fluid cannot help the deformed cable shell to reset, and the distance between the deformed part and the cable core becomes closer, causing the cable part to be weak, reducing the protection effect on the cable core. Summary of the invention

[0005] The present invention provides a compression-resistant cable, aiming to solve the technical problem in the related art that a non-Newtonian fluid cannot help a deformed cable casing to reset after receiving an impact, and the distance between the deformed part and the cable core becomes closer, causing a part of the cable to be weak, thereby reducing the protective effect on the cable core.

[0006] A pressure-resistant cable of the present invention comprises: a cable core, a sleeve, an airbag and a non-Newtonian fluid. An annular cavity is provided between the cable core and the sleeve. A fixing ring is provided in the annular cavity and is sleeved on the outside of the cable core. A plurality of support members uniformly distributed along the circumference thereof are slidably mounted on the fixing ring. Two ends of the support members are respectively abutted against the outer wall of the cable core and the inner wall of the sleeve. A reset module is provided between two adjacent support members. The reset module comprises an outer slide plate and an inner slide plate that are slidably matched by a spring. The other ends of the outer slide plate and the inner slide plate are respectively fixedly connected to two adjacent support members. Telescopic plates are rotatably matched on both sides of the support members. The telescopic plates are composed of a plurality of telescopic units. The telescopic plates on two adjacent support members are rotatably matched. A chamber is formed between the two adjacent support members. The telescopic plate divides it into an upper and lower chamber. The airbag is located in the upper chamber and is fixedly connected to the sleeve. A carrying bag is provided in the lower chamber, and the non-Newtonian fluid is arranged in the carrying bag.

[0007] Beneficial effects: When impacted, the airbag is squeezed, which can convert point impact into surface impact. The airbag squeezes the two telescopic plates, and the telescopic plates squeeze the non-Newtonian fluid. The non-Newtonian fluid spreads to both sides along the inclined surface of the support part on the support member, which can change the direction of the impact force. The non-Newtonian fluid will push the adjacent supports on both sides to slide along the fixed ring to both sides, and transmit the impact force to the non-Newtonian fluid in the adjacent chamber, so that the impact force spreads to the periphery, disperses and buffers the force, and can play an effective force release role. At the same time, the spring between the outer slide and the inner slide can also play a buffering role, forming a force dispersion and multi-level buffering, which can effectively protect the cable core. After the impact is over, the airbag and the springs between the outer and inner slides push the two adjacent supports to reset, so that the non-Newtonian fluid is reset, and the sleeve that has been squeezed and deformed can be restored. Thereby effectively ensuring the continuous pressure resistance of the cable core.

[0008] Preferably, the support member has a supporting portion and a connecting portion, the supporting portion is fan-shaped, and a side facing the cable core is an arcuate surface, and the arcuate surface contacts the cable core, and the connecting portion is connected to an end opposite to the arcuate surface of the supporting portion.

[0009] Preferably, the sleeve is sleeved on the outside of the cable core, and there are multiple sleeves, and an annular connecting sleeve is provided between two adjacent sleeves. The connecting sleeve is threadedly connected to the sleeve, and the sleeves are connected end to end through the connecting sleeve.

[0010] The effect is that it can ensure segmented protection of the cable core when it is bent.

[0011] Preferably, fillers made of rubber material are provided between adjacent sleeves.

[0012] The effect is that the bending of the cable core can be ensured and the cable core at the connection of the sleeve is protected at the same time.

[0013] Preferably, the outer slide plate and the inner slide plate are both arc-shaped structures.

[0014] Preferably, the airbag is bonded to the inner wall of the sleeve.

[0015] The effect is to prevent the airbag from shifting when it is squeezed.

[0016] Preferably, the carrying bag is made of rubber.

[0017] The effect is that the deformation of the non-Newtonian fluid can be ensured while carrying the non-Newtonian fluid.

[0018] Preferably, four support members are provided and evenly distributed on the fixing ring.

[0019] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: the airbag squeezes the two telescopic plates, and the telescopic plates squeeze the non-Newtonian fluid, which can change the direction of the impact force. The non-Newtonian fluid will push the support members on the adjacent two sides to slide along the fixed ring to both sides, and transmit the impact force to the non-Newtonian fluid in the adjacent chamber, so that the impact force spreads to the periphery, disperses and buffers the force, and can play an effective role in relieving force. At the same time, the spring between the outer slide and the inner slide can also play a buffering role, forming a force dispersion and multi-stage buffering, which can effectively protect the cable core. After the impact is over, the airbag and the springs between the outer slide and the inner slide push the two adjacent support members to reset, so that the non-Newtonian fluid is reset, and the sleeve that has been squeezed and deformed can be restored. Thereby effectively ensuring the continuous pressure resistance of the cable core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a stereogram of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the sleeve of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the airbag of the present invention.

[0023] Figure 4 It is a schematic diagram of the exploded view of the airbag, the carrying bag and the supporting member of the present invention.

[0024] Figure 5 It is a cross-sectional view of the outer slide plate and the inner slide plate of the present invention.

[0025] Figure 6 It is a schematic diagram of the exploded view of the fixing ring and the supporting member of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the telescopic plate of the present invention.

[0027] Reference numerals:

[0028] 10. Cable core; 20. Sleeve; 21. Connecting sleeve; 22. Filler; 30. Support member; 31. Fixing ring; 32. Outer slide plate; 33. Inner slide plate; 40. Telescopic plate; 50. Air bag; 60. Carrying bag; 61. Non-Newtonian fluid. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figures 1 to 7 As shown, a specific embodiment of a pressure-resistant cable of the present invention includes a cable core 10, a protection module, a support component, an airbag 50 and a non-Newtonian fluid 61.

[0031] like Figure 1 and Figure 2 The protection module includes a plurality of coaxially arranged sleeves 20, the sleeves 20 are made of rubber, and an annular connecting sleeve 21 is provided between two adjacent sleeves 20, and the connecting sleeve 21 is threadedly connected to the sleeve 20, so that the plurality of sleeves 20 are fixedly connected end to end through the connecting sleeve 21.

[0032] The cable core 10 passes through the sleeves 20 to form an annular cavity therebetween. A support component is disposed in the annular cavity inside each sleeve 20 . The support components in the annular cavity are disposed at intervals to facilitate bending of the cable core 10 and the sleeve 20 .

[0033] A filler 22 is provided between two adjacent support components to protect the cable core 10 . The filler 22 is made of a flexible material, such as rubber.

[0034] like Figures 3 to 7 The support assembly includes a support member 30 arranged in the annular cavity. In this embodiment, four support members 30 are arranged and are evenly distributed along the circumference of the annular cavity. The support member 30 has a supporting portion and a connecting portion. The supporting portion is fan-shaped, and the side facing the cable core 10 is an inwardly concave arc surface, and the arc surface is in contact with the cable core 10, and the connecting portion is connected to the end opposite to the arc surface of the supporting portion.

[0035] It is particularly noted that in other embodiments, the number of the support members 30 may be 6, 8 or even more, and this embodiment does not limit the number.

[0036] The support part of the support member 30 is provided with a through arc-shaped through hole near both ends, and a fixing ring 31 is slidably fitted in the arc-shaped through hole. The fixing ring 31 passes through the arc-shaped through holes on the four support members 30 in sequence, so that the four support members 30 can move in a circle along the fixing ring 31.

[0037] The cable core 10 is located inside the fixing ring 31 , and the arc surface of the support member 30 contacts the cable core 10 , and the connecting portion of the support member 30 contacts the inner wall of the sleeve 20 and slides therewith, thereby supporting the sleeve 20 and fixing the cable core 10 inside the sleeve 20 .

[0038] like Figure 5 and Figure 6 A reset module is provided between two adjacent support members 30, and the reset module includes an outer slide plate 32 and an inner slide plate 33. Both the outer slide plate 32 and the inner slide plate 33 are arc-shaped structures, and the two slide together through spring sliding. The outer slide plate 32 and the inner slide plate 33 are respectively fixedly installed on the support parts of the two adjacent support members 30.

[0039] The reset module evenly distributes the four support members 30 on the fixed ring 31, and when the support member 30 is subjected to force and slides along the fixed ring 31, the inner slide 33 slides into the outer slide 32, and the spring is compressed. When the support member 30 is not subjected to force, the elastic force of the spring is restored, and the support member 30 can be pushed to reset.

[0040] Two telescopic plates 40 are provided between two adjacent support members 30, and the telescopic plates 40 are formed by a plurality of telescopic units slidingly cooperating with each other. One end of the two telescopic plates 40 away from the hinge is respectively rotatably cooperating with the connecting parts on the two support members 30. When the two telescopic plates 40 are subjected to force, they will bend into a V shape at the middle hinge point, and the telescopic units of the telescopic plates 40 will be extended.

[0041] A chamber is formed between two adjacent support members 30 and the inner wall of the sleeve 20 , and the two telescopic plates 40 divide the chamber into an upper chamber and a lower chamber.

[0042] A semicircular airbag 50 is arranged in the upper chamber, and the center of the airbag 50 is fixed on the inner wall of the sleeve 20. In this embodiment, the airbag 50 is bonded to the inner wall of the sleeve 20.

[0043] A carrying bag 60 is disposed in the lower chamber. The carrying bag 60 is made of rubber and is filled with a non-Newtonian fluid 61 .

[0044] When in use, the support assembly can protect the cable core 10 in multiple directions. When the sleeve 20 is subjected to impact force, the sleeve 20 deforms inwardly, and the airbag 50 is squeezed, which can convert the point impact into a surface impact. At the same time, the airbag 50 will squeeze the two telescopic plates 40, and the two telescopic plates 40 will bend into a V shape at the middle hinge point in the lower chamber. The telescopic plates 40 will quickly squeeze the non-Newtonian fluid 61 in the lower chamber. After being squeezed, the non-Newtonian fluid 61 will spread to both sides along the inclined surface of the support part on the support member 30, which can change the direction of the impact force. At the same time, the characteristics of the non-Newtonian fluid 61 can also play a buffering role. After the non-Newtonian fluid 61 spreads to both sides, it will push the adjacent support members 30 to slide along the fixing ring 31 to both sides. The support member 30 transmits the impact force to the non-Newtonian fluid 61 in the adjacent chamber, so that the impact force spreads to the periphery, disperses the force and buffers it, which can effectively release the force. At the same time, the spring between the outer slide plate 32 and the inner slide plate 33 can also play a buffering role, forming force dispersion and multi-level buffering, which can effectively protect the cable core 10.

[0045] After the impact, the airbag 50 and the springs between the outer and inner slide plates 32 and 33 push the two adjacent support members 30 to reset, so that the non-Newtonian fluid 61 can be reset and the sleeve 20 that has been squeezed and deformed can be restored, thereby effectively ensuring the continuous compression resistance of the cable core 10.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A compression-resistant cable, comprising: A cable core (10), a sleeve (20), an air bag (50) and a non-Newtonian fluid (61); The invention is characterized in that an annular cavity is provided between the cable core (10) and the sleeve (20), a fixing ring (31) sleeved on the outside of the cable core (10) is provided in the annular cavity, a plurality of support members (30) uniformly distributed along the circumference of the fixing ring (31) are slidably mounted on the fixing ring (31), and two ends of the support members (30) are respectively in contact with the outer wall of the cable core (10) and the inner wall of the sleeve (20); A reset module is provided between two adjacent support members (30), the reset module comprising an outer slide plate (32) and an inner slide plate (33) which are slidably matched by a spring, and the other ends of the outer slide plate (32) and the inner slide plate (33) are respectively fixedly connected to the two adjacent support members (30); Both sides of the support member (30) are rotatably matched with telescopic plates (40), the telescopic plates (40) are composed of a plurality of telescopic units, and the telescopic plates (40) on two adjacent support members (30) are rotatably matched; A chamber is formed between two adjacent support members (30), and the telescopic plate (40) divides the chamber into a chamber close to the sleeve (20) and a chamber close to the cable core (10). The airbag (50) is located in the chamber close to the sleeve (20) and is fixedly connected to the sleeve (20). A carrying bag (60) is provided in the chamber close to the cable core (10), and a non-Newtonian fluid (61) is provided in the carrying bag (60). The support member (30) comprises a support portion and a connection portion, the support portion is fan-shaped, and a surface facing the cable core (10) is an arcuate surface, and the arcuate surface contacts the cable core (10), and the connection portion is connected to an end opposite to the arcuate surface of the support portion.

2. A pressure-resistant cable according to claim 1, characterized in that: The sleeve (20) is sleeved on the outside of the cable core (10), and a plurality of sleeves (20) are provided, and an annular connecting sleeve (21) is provided between two adjacent sleeves (20), the connecting sleeve (21) is threadedly connected to the sleeve (20), and the sleeves (20) are connected end to end via the connecting sleeve (21).

3. A pressure-resistant cable according to claim 2, characterized in that: Fillers (22) made of rubber material are arranged between adjacent sleeves (20).

4. A pressure-resistant cable according to claim 1, characterized in that: The outer slide plate (32) and the inner slide plate (33) are both arc-shaped structures.

5. A pressure-resistant cable according to claim 1, characterized in that: The airbag (50) is bonded to the inner wall of the sleeve (20).

6. A pressure-resistant cable according to claim 1, characterized in that: The material of the carrying bag (60) is rubber.

7. A pressure-resistant cable according to claim 1, characterized in that: Four support members (30) are provided and are evenly distributed on the fixing ring (31).

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