A power manhole protection device

Abstract

The utility model discloses a kind of electric power well protection devices, including metal positioning ring, the inner wall of the metal positioning ring is fixed with ceramic guide ring, the outer wall of the metal positioning ring is fixed with three equidistance distribution positioning column, one end outer wall of three The positioning column is fixed with outer thread fixed column, the outer wall of the outer thread fixed column is screwed with internal thread telescopic sleeve, the outer wall of the internal thread telescopic sleeve is fixed with positioning plate one end. The utility model is by setting ceramic guide ring in the inner wall of metal positioning ring, use wheel disc to rotate the internal thread telescopic sleeve of outer thread fixed column outer wall setting, cooperate the rubber pad of positioning plate outer wall setting and support the utility model in wellhead position, fix metal positioning ring, make ceramic guide ring fixed in import part, pass through the smooth surface characteristics of ceramic guide ring can greatly reduce the friction and scratch of cable when passing through electric power well and wellhead, well bottom.

Description

Technical Field

[0001] This utility model relates to the technical field of power well protection equipment, specifically to a power well protection device. Background Technology

[0002] In the field of power engineering construction and maintenance, power wells serve as important channels for cable laying, line maintenance, and other operations, and their internal environment is complex and operations are frequent.

[0003] In the past, when cables passed through the openings and bottoms of power manholes, the edges of these openings and bottoms were usually rough and lacked effective protective measures. During movement, laying, or maintenance, cables were prone to friction and scratches against the edges of the openings and bottoms. This friction and scratches would directly cause damage to the cable sheath. Once the cable sheath was damaged, not only would the conductor inside the cable be exposed, increasing the safety hazards such as leakage and short circuits, but the cable might also become damp and oxidized, accelerating cable aging and significantly shortening its service life.

[0004] Therefore, we propose a power well protection device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a protective device for power wells to address the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective device for power wells, comprising a metal positioning ring, a ceramic guide ring fixedly disposed on the inner wall of the metal positioning ring, three positioning posts evenly distributed on the outer wall of the metal positioning ring, an external threaded fixing post fixedly disposed on the outer wall of one end of the three positioning posts, an internal threaded telescopic sleeve screwed onto the outer wall of the external threaded fixing post, and a positioning plate fixedly disposed on the outer wall of one end of the internal threaded telescopic sleeve.

[0007] Preferably, a wheel is fixedly provided on the outer wall of the internally threaded telescopic sleeve.

[0008] Preferably, a rubber pad is adhered to one side of the outer wall of the positioning plate.

[0009] Preferably, the outer walls of the three positioning posts are fixedly provided with reinforcing rings.

[0010] Preferably, a fixing ring is sleeved on the outer wall of the reinforcing ring, and a fall arresting rope is bolted to the outer wall of the fixing ring.

[0011] Preferably, the inner diameter of the ceramic guide ring is 200mm, the length of the positioning post is 100mm, the length of the external thread fixing post is 350mm, and the length of the internal thread telescopic sleeve is 350mm.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] By setting a ceramic guide ring on the inner wall of the metal positioning ring, and using a wheel to rotate the externally threaded fixing column with an internally threaded telescopic sleeve on the outer wall, the utility model is supported at the wellhead position in conjunction with the rubber pad on the outer wall of the positioning plate, thus fixing the metal positioning ring and fixing the ceramic guide ring at the inlet. The smooth surface characteristics of the ceramic guide ring can greatly reduce the friction and scratching between the cable and the wellhead and bottom when the cable passes through the power well, effectively avoiding damage to the cable sheath, extending the cable service life, reducing the risk of power failure caused by cable damage, and ensuring the stable operation of the power system. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of a protective device for power wells according to the present invention;

[0016] Figure 2 This is a schematic diagram of the metal positioning ring structure of a power well protection device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the internal threaded telescopic sleeve structure of a power well protection device according to this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Metal positioning ring, 2. Ceramic guide ring, 3. Positioning post, 4. External threaded fixing post, 5. Internal threaded telescopic sleeve, 6. Wheel, 7. Positioning plate, 8. Rubber pad, 9. Fixing ring, 10. Anti-fall rope, 11. Reinforcing ring. Detailed Implementation

[0020] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0021] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] Example 1

[0023] Refer to the instruction manual appendix Figure 1-3 A protective device for power wells includes a metal positioning ring 1. Three equally spaced positioning posts 3 are fixed on the outer wall of the metal positioning ring 1. An externally threaded fixing post 4 fixed on one end of the outer wall of the three positioning posts 3 is screwed to an internally threaded telescopic sleeve 5. By rotating the internally threaded telescopic sleeve 5, the position of the internally threaded telescopic sleeve 5 on the externally threaded fixing post 4 can be adjusted, thereby adjusting the distance between the positioning plate 7 and the well wall, so that the positioning plate 7 can fit tightly against the well wall and achieve stable installation of the device.

[0024] Example 2

[0025] Based on Embodiment 1, in order to facilitate the rotation of the internal thread telescopic sleeve 5, a wheel 6 is fixedly provided on the outer wall of the internal thread telescopic sleeve 5. The operator can drive the internal thread telescopic sleeve 5 to rotate by rotating the wheel 6. A rubber pad 8 is glued to one side of the outer wall of the positioning plate 7. The rubber pad 8 can increase the friction between the positioning plate 7 and the well wall, further improve the stability of the device installation, and at the same time play a buffering role to reduce the rigid collision between the positioning plate 7 and the well wall.

[0026] Example 3

[0027] Based on Embodiment 1, reinforcing rings 11 are fixedly provided on the outer walls of the three positioning columns 3. The reinforcing rings 11 can enhance the structural stability between the three positioning columns 3, making the whole device more robust. A fixing ring 9 is sleeved on the outer wall of the reinforcing ring 11, and a fall arresting rope 10 is bolted to the outer wall of the fixing ring 9. When the device accidentally falls off, the fall arresting rope 10 can prevent the device from falling to the bottom of the well, ensuring construction safety. In practical applications, the inner diameter of the ceramic guide ring 2 is set to 200mm, which can meet the requirements of common cables. The length of the positioning column 3 is 100mm, and the lengths of the external thread fixing column 4 and the internal thread telescopic sleeve 5 are both 350mm. This size design can not only ensure the installation stability of the device, but also meet the adjustment requirements of different wellhead sizes.

[0028] Working principle of this utility model:

[0029] Refer to the instruction manual appendix Figure 1-3 When using this invention, first place one device at a suitable position at the wellhead of the power well. Place the metal positioning ring 1 stably on the edge of the wellhead, aligning the ceramic guide ring 2 with the direction the cable will pass through. The operator holds and rotates the wheel 6, causing the internal thread telescopic sleeve 5 to rotate on the external thread fixing post 4. Adjust the position of the internal thread telescopic sleeve 5 according to the distance between the well wall and the positioning post 3, ensuring the rubber pad 8 on the positioning plate 7 is tightly fitted against the well wall. The device is initially fixed at the wellhead by the friction between the rubber pad 8 and the well wall. Then, in the same manner, install another device at the bottom of the well, adjusting the internal thread telescopic sleeve 5 so that the positioning plate 7 is in contact with the well wall. The well bottom wall is connected; during installation, the three positioning columns 3 are equipped with reinforcing rings 11 on their outer walls, which can enhance the overall structural stability of the device; after the installation of this utility model is completed, the anti-fall rope 10 on the fixing ring 9 sleeved on the outer wall of the reinforcing ring 11 is fixed to prevent the utility model from accidentally falling into the well bottom. At this time, the cable is passed through the ceramic guide ring 2, whose smooth inner wall can guide the cable to pass smoothly and avoid the cable from being scratched and damaged by the well opening. When it is necessary to disassemble or adjust the position of the device, the wheel 6 is rotated in the opposite direction to make the internal thread telescopic sleeve 5 rotate outward to the external thread fixing column 4, and the positioning plate 7 is separated from the well wall, so that the device can be removed or the installation position can be readjusted.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A protective device for power wells, comprising a metal positioning ring (1), characterized in that: The inner wall of the metal positioning ring (1) is fixedly provided with a ceramic guide ring (2), and the outer wall of the metal positioning ring (1) is fixedly provided with three equally spaced positioning posts (3). One end of the outer wall of the three positioning posts (3) is fixedly provided with an external threaded fixing post (4), and the outer wall of the external threaded fixing post (4) is screwed with an internal threaded telescopic sleeve (5). One end of the outer wall of the internal threaded telescopic sleeve (5) is fixedly provided with a positioning plate (7).

2. The protective device for power wells according to claim 1, characterized in that: The outer wall of the internal threaded telescopic sleeve (5) is fixedly provided with a wheel (6).

3. The protective device for power wells according to claim 1, characterized in that: A rubber pad (8) is adhered to one side of the outer wall of the positioning plate (7).

4. The protective device for power wells according to claim 1, characterized in that: The outer walls of the three positioning posts (3) are fixed with reinforcing rings (11).

5. A protective device for power wells according to claim 4, characterized in that: The outer wall of the reinforcing ring (11) is fitted with a fixing ring (9), and the outer wall of the fixing ring (9) is bolted with a fall arrest rope (10).

6. A protective device for power wells according to claim 1, characterized in that: The inner diameter of the ceramic guide ring (2) is 200mm, the length of the positioning post (3) is 100mm, the length of the external thread fixing post (4) is 350mm, and the length of the internal thread telescopic sleeve (5) is 350mm.

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