Electrical wiring insulation protection device for thermal power generation

Abstract

The utility model discloses an electrical wiring insulation protection device for thermal power generation, which comprises two sleeves, the two sleeves are symmetrical in position and are in threaded connection through a connecting sleeve, and each sleeve comprises at least one sliding chute, a walking circular ring, a circular ring base, a sleeve base, a connecting rod, a pressing plate, a pressing plate base and a rotating ring. The sliding grooves are axially distributed along the outer sides of the sleeves, walking circular rings are arranged on the sleeves outside the sliding grooves, circular ring bases are fixed to the inner walls of the walking circular rings, the circular ring bases are located in the sliding grooves and slidably connected along the sliding grooves, sleeve bases are fixed to the inner walls, close to the centers of the two sleeves, of the circular ring bases, and connecting rods are hinged to the circular ring bases and the sleeve bases correspondingly. The pressing plate is located in the sleeve, two pressing plate bases are fixed to the outer side face of the pressing plate, and the tail ends of the two connecting rods are hinged to the two pressing plate bases respectively. According to the utility model, the problem that the existing wiring protection device cannot universally clamp cables with large diameter difference is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical wiring, and particularly relates to an electrical wiring insulation protection device for thermal power generation. Background Art

[0002] In the electrical wiring of thermal power generation, the connection part of wires and cables is an area prone to electrical faults. If the connection is poor or loose, it may cause the interruption of electrical signal transmission or short circuit, thus affecting the normal operation of equipment. The existing wiring protection device clamps the wires with a steel plate, which can make the connection part of wires and cables bear a large tensile force, but the protection measures are insufficient, leaving the wiring part exposed and unable to play a role in protection and moisture prevention.

[0003] The utility model patent with the publication number CN215071600U discloses an electrical wiring insulation protection device for a power plant, including a first protection sleeve and a second protection sleeve. The second protection sleeve is slidably sleeved at one end of the first protection sleeve, and a first flange is fixedly connected to the outer end wall of the first protection sleeve, and a second flange is fixedly connected to the outer end wall of the second protection sleeve. The first flange and the second flange are fixed by bolts and fastening nuts. Locking sleeves are fixedly connected to the separated ends of the first protection sleeve and the second protection sleeve respectively, and locking nuts are threadedly connected to the locking sleeves. An operation opening is formed in the outer pipe wall in the middle of the second protection sleeve, a chute is formed in the inner side wall of the second protection sleeve opposite to the operation opening, and a curved panel is slidably connected in the chute. The purpose of the utility model is to provide an insulation protection device with simple structure, convenient use, good protection performance and firm cable clamping. However, the connection of the locking sleeve and the locking nut clamps the cable, which is doomed to have little change in diameter. When clamping cables with a variety of different diameters, universality cannot be achieved, and the cable wiring part only has a protection function and does not have the function of moisture and waterproof protection. Content of the Utility Model

[0004] The purpose of the utility model is to provide an electrical wiring insulation protection device for thermal power generation, so as to solve the problems such as the existing wiring protection device cannot be universally clamped for cables with large diameter differences.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] An electrical wiring insulation protection device for thermal power generation, comprising sleeves. The two sleeves are symmetrically positioned and are threadedly connected by a connecting sleeve. Each sleeve includes a chute, a walking ring, a ring base, a sleeve base, a connecting rod, a pressing plate, a pressing plate base, and a rotating ring. The number of chutes is at least one, and the chutes are distributed axially along the outer side of the sleeve. A walking ring is arranged on the sleeve outside the chute. The inner wall of the walking ring is fixed with a ring base, and the ring base is located in the chute and is slidably connected along the chute. Sleeve bases are fixedly attached to the inner walls near the centers of the two sleeves. Connecting rods are respectively hinged to the ring base and the sleeve base. The pressing plate is located inside the sleeve, and two pressing plate bases are fixedly attached to the outer side of the pressing plate. The ends of the two connecting rods are respectively hinged to the two pressing plate bases. A rotating ring is threadedly connected to the sleeve outside the walking ring.

[0007] Preferably, an L-shaped ring is integrally formed at the outer end of the walking ring, and an L-shaped circular groove is formed on the side surface of the corresponding rotating ring. The L-shaped ring rotates within the L-shaped circular groove.

[0008] Preferably, a rubber pad is adhesively bonded to the inner side surface of the pressing plate.

[0009] Preferably, a rubber film is adhesively bonded to the inner wall circumference near the centers of the two sleeves.

[0010] Preferably, a rubber ring is integrally formed at the center of the rubber film.

[0011] Preferably, the thickness of the rubber ring is greater than that of the rubber film, and the initial diameter is 5 - 10 mm.

[0012] The present utility model has the following beneficial effects:

[0013] 1. The sleeves play an insulating and protective role for the cable connection. By manually rotating the rotating ring, the axial movement of the walking ring is achieved, enabling the pressing plate connected by the connecting rod to move radially, clamping various cables with different diameters, realizing versatility. Moreover, the pressing plate is an arc-shaped plate, which can increase the contact area with the cable, and together with the rubber pad, strengthens the friction force with the cable, preventing the cable from being easily disconnected under tension.

[0014] 2. With the elastic deformation of the rubber film and the rubber ring, they closely fit the outer surface of the cable, which can play a moisture-proof and waterproof role for the cable connection. Moreover, the rubber ring has a relatively thick thickness and is not easily torn, increasing its durability. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the external structure of the present utility model;

[0016] Figure 2 is Figure 1 a cross-sectional view;

[0017] Figure 3It is a schematic diagram of the connection between the connecting rod and the pressing plate of the present utility model;

[0018] Figure 4 is Figure 2 an enlarged view of A in

[0019] Figure 5 It is a schematic diagram of the positions of the rubber pad and the rubber film of the present utility model;

[0020] Icon: 1. Sleeve; 2. Connecting sleeve; 3. Chute; 4. Walking ring; 5. Ring base; 6. Sleeve base; 7. Connecting rod; 8. Pressing plate; 9. Pressing plate base; 10. Swivel ring; 11. L-shaped ring; 12. L-shaped circular groove; 13. Rubber pad; 14. Rubber film; 15. Rubber ring. Specific embodiments

[0021] The following further describes in detail the embodiments of the present utility model with reference to the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] Such as Figures 1-5As shown in the figure, in this embodiment, an electrical wiring insulation protection device for thermal power generation includes a sleeve 1. The two sleeves 1 are symmetrically positioned and are threadedly connected by a connecting sleeve 2 to provide insulation protection for the cable wiring. The sleeve 1 includes a chute 3, a walking ring 4, a ring base 5, a sleeve base 6, a connecting rod 7, a pressing plate 8, a pressing plate base 9, and a swivel ring 10. The number of chutes 3 is at least one, and the chutes 3 are distributed axially along the outer side of the sleeve 1. A walking ring 4 is provided on the sleeve 1 outside the chute 3. The inner wall of the walking ring 4 is fixed with a ring base 5. The ring base 5 is located in the chute 3 and is slidably connected along the chute 3. To control the walking ring 4 to synchronously move the ring base 5, a sleeve base 6 is fixedly attached to the inner wall near the center of the two sleeves 1. The ring base 5 and the sleeve base 6 are respectively hinged with a connecting rod 7, and all the connecting rods 7 are of the same size. The pressing plate 8 is located inside the sleeve 1, and two pressing plate bases 9 are fixed to the outer side of the pressing plate 8. The ends of the two connecting rods 7 are respectively hinged with the two pressing plate bases 9, enabling the pressing plate 8 to move radially along the inside of the sleeve 1 to clamp the cable. A swivel ring 10 is threadedly connected to the sleeve 1 outside the walking ring 4, which can limit the movement of the walking ring 4 when the pressing plate 8 clamps the cable to ensure that the pressing plate 8 does not become loose.

[0024] During the specific implementation process, for example, when the number of chutes 3 is one, the pressing plate 8 moves radially to clamp and fix the cable with the inner wall of the sleeve 1; when the number of chutes 3 is multiple, the circumferential angles between the chutes 3 are equal, and the pressing plate 8 moves radially and synchronously approaches the center of the sleeve 1 to clamp and fix the cable through the pressing plate 8. At this time, the cable and the sleeve 1 are located coaxially. In the above two methods, the radial movement distance of the pressing plate 8 is relatively large, enabling it to commonly clamp a variety of cables with different diameters.

[0025] An L-shaped ring 11 is integrally formed at the outer end of the walking ring 4, and an L-shaped circular groove 12 is formed on the side surface of the corresponding swivel ring 10. The L-shaped ring 11 rotates within the L-shaped circular groove 12.

[0026] During the specific implementation process, the walking ring 4 can move axially synchronously with the swivel ring 10, and the swivel ring 10 is threadedly connected to the sleeve 1 with a self-locking function, making the position of the walking ring 4 more stable and enhancing the stability of the pressing plate 8.

[0027] The pressing plate 8 is an arc-shaped plate, and a rubber pad 13 is adhered to the inner side surface of the pressing plate 8.

[0028] During the specific implementation process, since the cable is a cylindrical structure, the arc-shaped pressing plate 8 increases the contact surface with the cable, and with the cooperation of the rubber pad 13, it further increases the friction force, enabling the cable to withstand a large axial tension between the cable and the pressing plate 8 and making it not easy to slide with the pressing plate 8.

[0029] A rubber film 14 is adhesively bonded to the inner circumference of the centers of the two sleeves 1. A rubber ring 15 is integrally formed at the center of the rubber film 14. The thickness of the rubber ring 15 is greater than that of the rubber film 14, and the initial diameter is 5-10 mm.

[0030] During the specific implementation process, the rubber film 14 can seal the gap between the cable and the sleeve 1. In cooperation with the use of the rubber ring 15, the rubber ring 15 undergoes elastic deformation and is not easily torn. It is sleeved on the outer surface of the cable, playing a role in moisture-proof and waterproof for the cable connection at the center of the two sleeves 1.

[0031] The working principle of the present utility model is as follows: The two cables to be connected are respectively passed through the two-position connection sleeves 1. After the two cables are connected, the two sleeves 1 are threadedly connected through the connecting sleeve 2, and the sleeves 1 play an insulating protection role for the cable connection; during this period, when the cable passes through the sleeve 1, the cable expands the diameter of the rubber ring 15, making the rubber ring 15 closely adhere to the outer surface of the cable, forming a sealed space between the two sleeves 1, playing a role in moisture-proof and waterproof for the cable connection; rotating the rotating ring 10 makes the walking ring 4 move synchronously through the L-shaped circular groove 12 and the L-shaped circular ring 11. Since the circular ring base 5 slides along the chute, the connecting rod 7 drives the pressing plate 8 to move radially inside the sleeve 1, thereby clamping and fixing the internal cable, preventing the cable connection from being easily separated under the axial tension. And the pressing plate 8 moves a relatively large radial distance, and can clamp a variety of cables with different diameters, achieving the versatility of cable clamping.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electrical wiring insulation protection device for thermal power generation, comprising a sleeve (1), wherein two sleeves (1) are symmetrically located and threadedly connected via a connecting sleeve (2), characterized in that: The sleeve (1) comprises a slide groove (3), a running ring (4), a ring base (5), a sleeve base (6), a connecting rod (7), a pressure plate (8), a pressure plate base (9), and a rotating ring (10). The number of the slide groove (3) is at least one. The slide groove (3) is axially distributed along the outer side of the sleeve (1). A running ring (4) is arranged on the sleeve (1) outside the slide groove (3). A ring base (5) is fixed on the inner wall of the running ring (4). The ring base (5) is located on the slide groove. The sleeve base (6) is fixed near the central inner wall of the two sleeves (1) and is slidably connected along the slide groove (3). The annular base (5) and the sleeve base (6) are respectively hinged with connecting rods (7). The pressure plate (8) is located inside the sleeve (1), and two pressure plate bases (9) are fixed on the outer side of the pressure plate (8). The ends of the two connecting rods (7) are respectively hinged with the two pressure plate bases (9). A swivel (10) is threadedly connected to the sleeve (1) outside the walking ring (4).

2. An insulation protection device for electrical wiring for thermal power generation according to claim 1, characterized in that: An L-shaped circular ring (11) is integrally formed at the outer end of the walking circular ring (4), and an L-shaped circular groove (12) is opened on the side surface of the corresponding rotating ring (10), and the L-shaped circular ring (11) is located in the L-shaped circular groove (12) and rotates.

3. The electrical wiring insulation protection device for thermal power generation according to claim 1, characterized in that: The pressing plate (8) is an arc-shaped plate.

4. The electrical wiring insulation protection device for thermal power generation according to claim 3, characterized in that: A rubber pad (13) is bonded to the inner side of the pressing plate (8).

5. The electrical wiring insulation protection device for thermal power generation according to claim 1, characterized in that: A rubber film (14) is bonded to the circumference of the inner walls of the two sleeves (1) near their centers.

6. An insulation protection device for electrical wiring for thermal power generation according to claim 5, characterized in that: A rubber ring (15) is integrally formed at the center of the rubber membrane (14).

7. An insulation protection device for electrical wiring for thermal power generation according to claim 6, characterized in that: The thickness of the rubber ring (15) is greater than that of the rubber film (14), and the initial diameter is 5-10 mm.

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