Cable shielding sleeve for nuclear power station

Abstract

The utility model relates to the technical field of shielding sleeves, in particular to a cable shielding sleeve for a nuclear power station. According to the technical scheme, the device comprises a sleeve assembly; the first clamping blocks are fixedly arranged on the inner wall of the sleeve assembly, and first clamping grooves used for clamping cables are formed in the arc-shaped surfaces of the first clamping blocks; the clamping assembly is located in the sleeve assembly and used for being matched with the first clamping block to limit and hold down the cable, the clamping assembly comprises an internal thread ring arranged in the sleeve assembly, a plurality of supporting plates are fixedly arranged on the outer wall of the internal thread ring, sliding grooves are formed in the two sides of each supporting plate respectively, and adjusting assemblies are arranged between the sliding grooves; the adjusting assembly is provided with a second clamping block used for pressing the cable. According to the utility model, a plurality of cables can be stably clamped and limited at the same time, the mutual friction and winding of the plurality of cables are avoided, the risk of cable faults is reduced, the movement and shaking of the cables can be effectively reduced, the stability of the cables is improved, the cables are convenient to maintain and replace, and the maintenance cost and time are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding sleeves, in particular to a cable shielding sleeve for a nuclear power station. Background Art

[0002] The cable shielding sleeve for nuclear power plants is a device used to protect the cables of nuclear power plants. It can prevent the cables from being affected by electromagnetic interference and radiation. These cables are used to transmit various signals and data of nuclear power plants. If the cables are loose or moved, it may cause signal transmission interruption or data loss, thus affecting the normal operation of the nuclear power plant. There are usually multiple cables inside the existing cable shielding sleeves for nuclear power plants. These cables are prone to mutual friction and entanglement, causing the cable outer skin to wear or even break, thereby exposing the conductor inside the cable, increasing the risk of cable failure, and the entanglement between the cables makes maintenance and replacement difficult. To this end, the utility model proposes a cable shielding sleeve for nuclear power plants. Utility Model Content

[0003] The purpose of the utility model is to propose a cable shielding sleeve for a nuclear power plant in view of the problem in the background technology that there are usually multiple cables inside the cable shielding sleeve for a nuclear power plant, and these cables are prone to mutual friction and entanglement, causing wear and even rupture of the cable outer skin, thereby exposing the conductor inside the cable, increasing the risk of cable failure, and the entanglement between the cables makes maintenance and replacement difficult.

[0004] The technical solution of the utility model: a cable shielding sleeve for a nuclear power plant, comprising: a sleeve assembly; a plurality of first clamping blocks fixedly arranged on the inner wall of the sleeve assembly, the arc-shaped surface of the first clamping block being provided with a first clamping groove for clamping the cable; a clamping assembly located inside the sleeve assembly and used for cooperating with the first clamping block to limit and press the cable, the clamping assembly comprising an internal threaded ring arranged inside the sleeve assembly, a plurality of support plates fixedly arranged on the outer wall of the internal threaded ring, slide grooves being respectively arranged on both sides of the support plates, an adjustment assembly being arranged between the slide grooves, a second clamping block for pressing the cable being arranged on the adjustment assembly, and a second clamping groove being arranged on the arc-shaped surface of the second clamping block.

[0005] Optionally, the adjusting assembly includes a sliding block slidably arranged inside a supporting plate, one end of the sliding block is fixedly arranged with two guide rods, one end of the guide rod is fixedly arranged with a limit block, a fixing plate is arranged between the guide rods, two guide grooves are respectively provided on both sides of the fixing plate, the guide grooves are movably sleeved with the guide rods, the outer wall of the guide rod is sleeved with a first spring, one end of the first spring is fixedly connected to the limit block, the other end of the first spring is fixedly connected to the fixing plate, a fixing rod is fixedly arranged on one side of the fixing plate, one end of the fixing rod passes through the internal threaded ring and is extended to be connected with a push block, the outer wall of the fixing rod is sleeved with a second spring, one end of the second spring is fixedly connected to the internal threaded ring, and the other end of the second spring is fixedly connected to the push block.

[0006] Optionally, the adjustment assembly further comprises a threaded rod threadedly sleeved on the internal threaded ring, one end of the threaded rod is fixedly connected to a rotating cap, an outer wall of the threaded rod is provided with an inclined push groove, and the inclined push groove is in close contact with the push block.

[0007] Optionally, the sleeve assembly includes an insulating layer, an outer wall of the insulating layer is provided with an aluminum foil layer, and an outer wall of the aluminum foil layer is provided with a protective layer.

[0008] Optionally, the slide groove and the slider are arranged in a "T"-shaped structure.

[0009] Optionally, the first card slot and the second card slot are arranged opposite to each other.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects:

[0011] The utility model can stably clamp and limit multiple cables at the same time by rotating the rotating cap so that the inclined push groove on the threaded rod pushes the second clamping groove on the second clamping block to move toward the first clamping groove on the first clamping block, thereby avoiding friction and entanglement between the multiple cables, reducing the risk of cable failure, effectively reducing the movement and shaking of the cables, improving the stability of the cables, facilitating the maintenance and replacement of the cables, and reducing maintenance costs and time;

[0012] Furthermore, the utility model arranges an aluminum foil layer on the outer wall of the insulating layer. The aluminum foil layer has good electrical conductivity and corrosion resistance, can effectively shield external electromagnetic interference, and improves the anti-interference ability. A protective layer is arranged on the outer wall of the aluminum foil layer. The protective layer is made of stainless steel and has good corrosion resistance, wear resistance and high temperature stability. It can effectively protect the cable shielding sleeve and extend its service life. At the same time, the stainless steel material also has good electrical conductivity and anti-magnetism, can effectively shield external electromagnetic interference, and further improve the anti-interference ability of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1A schematic diagram of the structure of a cable shielding sleeve for a nuclear power plant is given;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure of the middle casing assembly;

[0015] Figure 3 For this utility model Figure 1 A schematic diagram of the structure of the middle clamping assembly;

[0016] Figure 4 For this utility model Figure 3 A schematic diagram of a portion of the structure of the regulating component;

[0017] Figure 5 For this utility model Figure 4 A schematic diagram of the internal cross-sectional structure of the middle fixing plate;

[0018] Figure 6 For this utility model Figure 5 Enlarged view of point A in the middle.

[0019] Reference numerals:

[0020] 1. Sleeve assembly; 11. Insulation layer; 12. Aluminum foil layer; 13. Protective layer;

[0021] 2. First card block; 3. First card slot;

[0022] 4. Clamping assembly; 41. Internal thread ring; 42. Support plate; 43. Slide groove; 44. Second clamping block; 45. Second clamping groove;

[0023] 5. Adjustment assembly; 501. Slider; 502. Guide rod; 503. Limit block; 504. Fixed plate; 505. Guide groove; 506. First spring; 507. Fixed rod; 508. Push block; 509. Second spring; 510. Threaded rod; 511. Rotating cap; 512. Inclined push groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] Example

[0029] like Figure 1 and Figure 3 As shown, the utility model proposes a cable shielding sleeve for a nuclear power plant, comprising: a sleeve assembly 1, and the interior of the sleeve assembly 1 is hollow, which is convenient for placing multiple cables; a plurality of first clamping blocks 2 fixedly arranged on the inner wall of the sleeve assembly 1, and the arc surface of the first clamping block 2 is provided with a first clamping groove 3 for clamping the cable, which is used for stably clamping the cable; a clamping assembly 4 located inside the sleeve assembly 1 for cooperating with the first clamping block 2 to limit and press the cable, the clamping assembly 4 comprises an internal threaded ring 41 arranged inside the sleeve assembly 1, and at least two internal threaded rings 41 are provided, and a plurality of support plates 42 are fixedly provided on the outer wall of the internal threaded ring 41, and slide grooves 43 are respectively provided on both sides of the support plate 42, and an adjustment assembly 5 is provided between the slide grooves 43, and a second clamping block 44 for pressing the cable is provided on the adjustment assembly 5, and a second clamping groove 45 is provided on the arc surface of the second clamping block 44.

[0030] like Figures 3 to 6As shown, the adjustment component 5 includes a slider 501 slidably arranged inside the support plate 42, one end of the slider 501 is fixedly provided with two guide rods 502, which can guide the guide rods 502 to make the sliding more stable, one end of the guide rods 502 is fixedly provided with a limit block 503, which can limit the guide rods 502, a fixing plate 504 is arranged between the guide rods 502, two guide grooves 505 are respectively provided on both sides of the fixing plate 504, the guide grooves 505 are movably sleeved with the guide rods 502, so that the fixing plate 504 can move stably, and the outer wall of the guide rod 502 is sleeved with a first spring 506, and the first spring 506 One end of the first spring 506 is fixedly connected to the limit block 503, and the other end of the first spring 506 is fixedly connected to the fixed plate 504, which can improve the stability of the movement of the fixed plate 504. A fixing rod 507 is fixedly arranged on one side of the fixed plate 504. One end of the fixing rod 507 passes through the internal threaded ring 41 and is extended to be connected with a push block 508, which can drive the fixed plate 504 to move at the same time. The outer wall of the fixing rod 507 is sleeved with a second spring 509, one end of the second spring 509 is fixedly connected to the internal threaded ring 41, and the other end of the second spring 509 is fixedly connected to the push block 508, which can further improve the stability of the movement of the fixed plate 504.

[0031] like Figure 5 and Figure 6 As shown, the adjustment component 5 also includes a threaded rod 510 threadedly sleeved on the internal threaded ring 41, and one end of the threaded rod 510 is fixedly connected to a rotating cap 511 to facilitate manual rotation of the threaded rod 510 to move, and the outer wall of the threaded rod 510 is provided with an inclined push groove 512, the number of the inclined push grooves 512 corresponds to the internal threaded ring 41, and the inclined push grooves 512 are in close contact with the push block 508, so as to facilitate mutual squeezing and movement between them.

[0032] like Figure 1 and Figure 2 As shown, the sleeve assembly 1 includes an insulating layer 11, and the insulating layer 11 is made of rubber. The rubber has good mechanical strength and wear resistance, and can protect the cable from mechanical damage. The outer wall of the insulating layer 11 is provided with an aluminum foil layer 12. The aluminum foil layer 12 has good electrical conductivity and corrosion resistance, and can effectively shield external electromagnetic interference and improve anti-interference ability. The outer wall of the aluminum foil layer 12 is provided with a protective layer 13. The protective layer 13 is made of stainless steel, and has good corrosion resistance, wear resistance and high temperature stability. It can effectively protect the cable shielding sleeve and extend its service life. At the same time, the stainless steel material also has good electrical conductivity and anti-magnetism, which can effectively shield external electromagnetic interference and further improve the anti-interference ability of the cable.

[0033] Furthermore, the sliding groove 43 and the sliding block 501 are arranged in a “T”-shaped structure, which can make the clamping more stable, thereby improving the sliding stability of the fixing plate 504 .

[0034] Furthermore, the first card slot 3 and the second card slot 45 are arranged opposite to each other, and can stably hold cables of different thicknesses.

[0035] The working principle of this embodiment is as follows: multiple cables are sequentially passed between the first card slot 3 and the second card slot 45, and then the rotating cap 511 is manually rotated, and the rotating cap 511 drives the threaded rod 510 to rotate between the internal thread ring 41, so that the inclined push groove 512 of the outer wall moves, and the inclined push groove 512 drives the push block 508 to move, and the push block 508 drives multiple fixed plates 504 to move through the fixed rod 507. During the movement of the fixed plate 504, the guide rod 502 slides in the guide groove 505, and the guide rod 502 drives the slider 501 to slide in the slide groove 43, thereby guiding the movement of the fixed plate 504. The fixed plate 504 drives the second card slot 45 on the second card block 44 to move toward the first card slot 3 on the first card block 2, and the multiple cables are stably clamped and limited at the same time, avoiding friction and entanglement between the multiple cables, reducing the risk of cable failure, and effectively reducing the movement and shaking of the cables, improving the stability of the cables, facilitating the maintenance and replacement of the cables, and reducing the maintenance cost and time.

[0036] Furthermore, when the cable sleeve is installed in a nuclear power plant, the aluminum foil layer 12 can shield external electromagnetic interference and improve anti-interference ability. The protective layer 13 can effectively protect the cable shielding sleeve and extend its service life. At the same time, it can effectively shield external electromagnetic interference and further improve the anti-interference ability of the cable.

[0037] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A cable shielding sleeve for a nuclear power plant, characterized in that: include: A casing assembly (1); A plurality of first clamping blocks (2) fixedly arranged on the inner wall of the sleeve assembly (1), wherein the arc-shaped surface of the first clamping block (2) is provided with a first clamping groove (3) for clamping the cable; A clamping assembly (4) is located inside the sleeve assembly (1) and is used to cooperate with the first clamping block (2) to limit and press the cable. The clamping assembly (4) includes an internal threaded ring (41) arranged inside the sleeve assembly (1). A plurality of support plates (42) are fixedly arranged on the outer wall of the internal threaded ring (41). Slide grooves (43) are respectively provided on both sides of the support plates (42). An adjustment assembly (5) is provided between the slide grooves (43). A second clamping block (44) for pressing the cable is provided on the adjustment assembly (5). The arc surface of the second clamping block (44) is provided with a second clamping groove (45).

2. A cable shielding sleeve for a nuclear power plant according to claim 1, characterized in that: The adjusting assembly (5) comprises a slider (501) slidably arranged inside the supporting plate (42); two guide rods (502) are fixedly arranged at one end of the slider (501); a limit block (503) is fixedly arranged at one end of the guide rod (502); a fixing plate (504) is arranged between the guide rods (502); two guide grooves (505) are respectively provided on both sides of the fixing plate (504); the guide grooves (505) are movably sleeved with the guide rods (502); a first spring (506) is sleeved on the outer wall of the guide rod (502); the first spring One end of the spring (506) is fixedly connected to the limit block (503), the other end of the first spring (506) is fixedly connected to the fixed plate (504), a fixed rod (507) is fixedly arranged on one side of the fixed plate (504), one end of the fixed rod (507) passes through the internal thread ring (41) and is extended to be connected to a push block (508), a second spring (509) is sleeved on the outer wall of the fixed rod (507), one end of the second spring (509) is fixedly connected to the internal thread ring (41), and the other end of the second spring (509) is fixedly connected to the push block (508).

3. A cable shielding sleeve for a nuclear power plant according to claim 2, characterized in that: The adjustment assembly (5) further comprises a threaded rod (510) threadedly sleeved on the internal threaded ring (41), one end of the threaded rod (510) being fixedly connected to a rotating cap (511), an outer wall of the threaded rod (510) being provided with an inclined push groove (512), and the inclined push groove (512) is in close contact with the push block (508).

4. The cable shielding sleeve for a nuclear power plant according to claim 1, characterized in that: The bushing assembly (1) comprises an insulating layer (11), the outer wall of the insulating layer (11) is provided with an aluminum foil layer (12), and the outer wall of the aluminum foil layer (12) is provided with a protective layer (13).

5. The cable shielding sleeve for a nuclear power plant according to claim 2, characterized in that: The slide groove (43) and the sliding block (501) are arranged in a "T"-shaped structure.

6. The cable shielding sleeve for a nuclear power plant according to claim 1, characterized in that: The first card slot (3) and the second card slot (45) are arranged opposite to each other.

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