Telescopic adjustable tension fence for nuclear power plant

Abstract

The utility model provides a nuclear power plant tension fence capable of being adjusted in a telescopic mode, and relates to the technical field of nuclear power plant tension fences, the nuclear power plant tension fence comprises a main machine rod and a positioning rod installed on the right side of the main machine rod, a fixing column is arranged on the right side of the positioning rod, and a plurality of positioning ropes are arranged on the right side of the main machine rod from top to bottom at equal intervals. Steel wire meshes are arranged among the multiple positioning ropes, tension regulators are arranged on the positions, close to the left sides, of the circles of the multiple positioning ropes, lower supports are arranged on the left side and the right side of the positioning rod and located on the lower sides of the positioning ropes to lift the positioning ropes, and rolling shafts are in transmission connection with the outer walls of the front ends of the lower supports. By installing the lower support and the rolling shaft, when the positioning rope is subjected to tension stretching, direct contact between the positioning rope and the positioning rod can be reduced, so that abrasion is reduced, the service life of the positioning rope is prolonged, the positioning rope can smoothly roll during tension stretching due to the design of the rolling shaft, friction force is reduced, and abrasion of the positioning rope is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tension fences of nuclear power plants, in particular to a telescopically adjustable tension fence of nuclear power plants. Background Art

[0002] Nuclear power plant fence is a safety protection facility used around nuclear power plants. Its purpose is to prevent unauthorized personnel from entering the nuclear power plant area and ensure the safe operation of the nuclear power plant. It is a fence system that can be retracted and adjusted as needed. It usually consists of a supporting structure, wire mesh, tension device and controller. Nuclear power plant fences are usually made of high-strength metal materials with protective performance and corrosion resistance.

[0003] After searching, the patent with application number CN201510170327.8 discloses a quick-install fence, including a column, a cross bar, and a vertical bar. The column is square, and a connecting square hole is provided on the side of the column, screw holes are provided on the upper sides of the column, and a column cap is provided on the upper part of the column. The upper and lower planes of the cross bar are provided with corresponding limiting holes, and the limiting holes are hexagonal. The two ends of the upper and lower planes are provided with corresponding connecting holes 2, the upper part of the vertical bar is flattened into a dart head, and the cross section of the vertical bar is a small hexagon, and upper and lower limiting holes are provided on a pair of corresponding sides. The two ends of the cross bar are inserted into the connecting square holes of the column, and a connecting rod is provided inside the column to be inserted into the connecting hole 2, a protective block is installed in the limiting hole of the cross bar, and the vertical bar is inserted into the protective block. An elastic limiting card is provided in the vertical bar and fixed in the limiting structure. The quick-install fence described in the present invention has a simple structure, low cost, uses elastic limiting cards for positioning, is simple and fast to install and disassemble, and has a long service life.

[0004] However, this embodiment still has shortcomings. For example, after the fence is installed, the fence will fit the surface of the positioning rod, causing the fence to rub back and forth on the surface of the positioning rod during tension contraction, resulting in severe wear in the area of ​​the fence that contacts the positioning rod, increasing the degree of damage and making it easy to break. Utility Model Content

[0005] Based on this, it is necessary to provide a retractable nuclear power plant tension fence to address the problem that during the tension contraction process of the fence, the surface of the contact positioning rod rubs back and forth, resulting in severe wear in the area where the fence contacts the positioning rod.

[0006] The utility model provides a retractable and adjustable tension fence for a nuclear power plant, comprising:

[0007] A main rod and a positioning rod installed on the right side of the main rod, a fixing column is arranged on the right side of the positioning rod, a plurality of positioning ropes are arranged equidistantly from top to bottom on the right side of the main rod, a steel wire mesh is arranged between the plurality of positioning ropes, and a tension regulator is arranged at a position close to the left side of each positioning rope;

[0008] Lower supports are provided on the left and right sides of the positioning rod and located under the positioning rope to lift the positioning rope, and the front end outer wall of the lower support is transmission-connected with a roller.

[0009] In one of the embodiments, an upper support is provided on the upper side of the roller, and a connecting plate is fixedly connected between the upper support and the lower support.

[0010] In one of the embodiments, the upper outer wall of the upper support and the lower outer wall of the lower support are both fixedly connected with fixing plates, and a fixing rod is fixedly connected between the rear end outer walls of the two fixing plates and the positioning rod.

[0011] In one embodiment, the fixing rod and the positioning rod are fixedly connected by welding, and the distance between the upper support and the lower support is greater than the vertical length of the positioning rope.

[0012] In one of the embodiments, the tension regulator is internally connected to a driver to drive the positioning rope to be retracted and released, and a sensor is fixedly connected to the front outer wall of the driver to receive external driving signals.

[0013] In one embodiment, a plurality of connecting springs are equidistantly fixedly connected to the outer wall of the right end of the main rod, each of the connecting springs is connected to the corresponding positioning rope, and a positioner is provided on the right side of the plurality of connecting springs to limit the position of the positioning rope.

[0014] In one of the embodiments, a plurality of cable tie devices are equidistantly arranged on the left side of the fixed column from top to bottom, and an audible and visual alarm light is fixedly connected to the outer wall of the upper end of the main rod.

[0015] In one of the embodiments, the lower outer walls of the main rod, the positioning rod and the fixing column are all fixedly connected to a mounting base, and the positioning rope and the wire mesh are both made of stainless steel.

[0016] In one of the embodiments, a through hole is opened inside the positioning rod for the positioning rope to pass through, and a pressure sensor is arranged inside the through hole.

[0017] By installing the lower support and the roller, when the positioning rope passes through the positioning rod, it can be lifted by the lower support to reduce the contact between the positioning rope and the positioning rod. At the same time, when the positioning rope is under tension, the direct contact between the positioning rope and the positioning rod can be reduced, thereby reducing wear and extending the service life of the positioning rope. The design of the roller enables the positioning rope to roll smoothly when the tension is stretched, reducing friction and reducing the wear of the positioning rope. When the positioning rope passes through the positioning rod as a fulcrum when turning a corner, the roller can reduce the wear of the rotating positioning rope and the corner of the positioning rod, thereby reducing the damage rate of the positioning rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a retractable and adjustable tension fence structure of a nuclear power plant according to the utility model;

[0019] Figure 2 It is a schematic diagram of the partial structure of the tension regulator area in a front view section of the utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the positioning rod area of ​​the utility model;

[0021] Figure 4 It is a schematic diagram of the partial structure of the upper support area in a top view of the cross section of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Main rod; 2. Connecting spring; 3. Positioner; 4. Tension adjuster; 5. Sound and light alarm light; 6. Positioning rope; 7. Positioning rod; 8. Wire mesh; 9. Fixed column; 10. Cable tie; 11. Mounting base; 12. Sensor; 13. Driver; 14. Fixed plate; 15. Connecting plate; 16. Lower support; 17. Upper support; 18. Fixed rod; 19. Roller. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the specific details described below are only part of the embodiments of the utility model, and the utility model can also be implemented in many other embodiments different from those described here. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model.

[0025] 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 and do not represent the only implementation method.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art 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.

[0027] Please refer to Figure 1 The utility model provides a retractable and adjustable tension fence for a nuclear power plant, comprising:

[0028] A main pole 1 and a positioning pole 7 installed on the right side of the main pole 1, a fixing column 9 is arranged on the right side of the positioning pole 7, a plurality of positioning ropes 6 are arranged equidistantly from top to bottom on the right side of the main pole 1, a wire mesh 8 is arranged between the plurality of positioning ropes 6, and a tension regulator 4 is arranged near the left side of each positioning rope 6. After the tension fence is installed, when the tension fence is tensioned, the positioning rope 6 can be reeled in by the tension regulator 4 so that the tension of the positioning rope 6 and the wire mesh 8 is increased, the tension is maintained, and the strength and stability of the fence are increased;

[0029] Lower supports 16 are provided on the left and right sides of the positioning rod 7 and at the lower side of the positioning rope 6 to lift the positioning rope 6. The front end outer wall of the lower support 16 is transmission-connected with a roller 19. When the positioning rope 6 is retracted or released, the positioning rope 6 can be lifted by the lower support 16 to reduce the contact between the positioning rope 6 and the positioning rod 7. When the positioning rope 6 is turned and installed with the positioning rod 7 as a fulcrum, the wear at the corners of the positioning rope 6 and the positioning rod 7 can be reduced by the roller 19.

[0030] Please refer to Figure 3 An upper support 17 is provided on the upper side of the roller 19, a connecting plate 15 is fixedly connected between the upper support 17 and the lower support 16, a fixing plate 14 is fixedly connected to the upper end outer wall of the upper support 17 and the lower end outer wall of the lower support 16, and a fixing rod 18 is fixedly connected between the rear end outer walls of the two fixing plates 14 and the positioning rod 7.

[0031] The fixing plate 14 limits the movement space of the positioning rope 6 to prevent the positioning rope 6 from escaping from the lower support 16. The fixing rod 18 is provided so that the lower support 16 and the upper support 17 can stably support the positioning rope 6, thereby reducing the number of contacts between the positioning rope 6 and the positioning rod 7.

[0032] Please refer to Figure 3 The fixing rod 18 and the positioning rod 7 are fixedly connected by welding, and the distance between the upper support 17 and the lower support 16 is greater than the vertical length of the positioning rope 6.

[0033] The fixed connection is performed by welding, which can avoid the fixing rod 18 and the positioning rod 7 from breaking, separating or falling off.

[0034] Please refer to Figure 2 The tension regulator 4 is internally connected to a driver 13 to drive the positioning rope 6 to retract and release, and the front end outer wall of the driver 13 is fixedly connected to a sensor 12 to receive external driving signals.

[0035] When the tension regulator 4 adjusts the surface tension of the positioning rope 6, a contraction signal is sent to the sensor 12 through the external controller, thereby controlling the driver 13 to drive the positioning rope 6 to reel in, thereby increasing the tension of the positioning rope 6. Rotating in the opposite direction reduces the surface tension of the positioning rope 6.

[0036] Please refer to Figure 1 A plurality of connecting springs 2 are evenly and fixedly connected to the outer wall of the right end of the main rod 1, and each connecting spring is connected to the corresponding positioning rope 6. A positioner 3 is arranged on the right side of the plurality of connecting springs 2 to limit the position of the positioning rope 6. A plurality of cable tie devices 10 are evenly arranged from top to bottom on the left side of the fixed column 9. An audible and visual alarm light 5 is fixedly connected to the outer wall of the upper end of the main rod 1. A mounting base 11 is fixedly connected to the outer walls of the lower ends of the main rod 1, the positioning rod 7 and the fixed column 9. The positioning rope 6 and the wire mesh 8 are made of stainless steel.

[0037] The surface tension of the positioning rope 6 is increased by connecting the spring 2, and the positioning rope 6 is adjusted and restricted to be installed and fixed in a straight state through the positioner 3 and the wire tie 10. When an intruder crosses the positioning rope 6 and the wire mesh 8, the sound and light alarm light 5 will issue a warning to warn of the intrusion.

[0038] Please refer to Figure 1 A through hole is provided inside the positioning rod 7 for the positioning rope 6 to pass through, and a pressure sensor is arranged inside the through hole.

[0039] When an intruder climbs the positioning rope 6, the pressure sensor will be pressed down to send a signal to the sound and light alarm light 5, so that the sound and light alarm light 5 issues a warning.

[0040] The implementation principle of this embodiment is: fix the main pole 1, the positioning pole 7 and the fixed column 9 on the same horizontal plane outside the nuclear power plant, and keep the positions in the same straight line, and then fix the positioning rope 6 between the main pole 1, the positioning pole 7 and the fixed column 9. When the tension fence is tensioned, the positioning rope 6 can be retracted by the tension regulator 4 to increase the tension of the positioning rope 6 and the wire mesh 8, maintain the tightness, and increase the strength and stability of the fence.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several deformations, substitutions and improvements can be made without departing from the concept of the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be based on the claims.

Claims

1. A retractable tension fence for a nuclear power plant, characterized in that: include: A main rod (1) and a positioning rod (7) installed on the right side of the main rod (1), a fixing column (9) is arranged on the right side of the positioning rod (7), a plurality of positioning ropes (6) are arranged equidistantly from top to bottom on the right side of the main rod (1), a steel wire mesh (8) is arranged between the plurality of positioning ropes (6), and a tension regulator (4) is arranged near the left side of each positioning rope (6); Lower supports (16) are provided on both left and right sides of the positioning rod (7) and located below the positioning rope (6) to lift the positioning rope (6), and a roller (19) is connected to the front end outer wall of the lower support (16) in a transmission manner.

2. The retractable and adjustable tension fence for nuclear power plants according to claim 1, characterized in that: An upper support (17) is provided on the upper side of the roller (19), and a connecting plate (15) is fixedly connected between the upper support (17) and the lower support (16).

3. The retractable tension fence for a nuclear power plant according to claim 2, characterized in that: The upper outer wall of the upper support (17) and the lower outer wall of the lower support (16) are both fixedly connected to a fixing plate (14), and a fixing rod (18) is fixedly connected between the rear end outer walls of the two fixing plates (14) and the positioning rod (7).

4. The retractable and adjustable tension fence for nuclear power plants according to claim 3, characterized in that: The fixing rod (18) and the positioning rod (7) are fixedly connected by welding, and the distance between the upper support (17) and the lower support (16) is greater than the vertical length of the positioning rope (6).

5. The retractable and adjustable tension fence for nuclear power plants according to claim 1, characterized in that: The tension regulator (4) is internally connected to a driver (13) to drive the positioning rope (6) to perform a retracting and extending operation, and the front end outer wall of the driver (13) is fixedly connected to a sensor (12) to receive an external driving signal.

6. The retractable tension fence for a nuclear power plant according to claim 1, characterized in that: A plurality of connection springs (2) are fixedly connected to the outer wall of the right end of the main rod (1) at equal intervals, each of the connection springs (2) is connected to a corresponding positioning rope (6), and a positioner (3) is provided on the right side of the plurality of connection springs (2) to limit the position of the positioning rope (6).

7. The retractable and adjustable tension fence for nuclear power plants according to claim 1, characterized in that: A plurality of cable tie devices (10) are arranged equidistantly from top to bottom on the left side of the fixed column (9), and an audible and visual alarm lamp (5) is fixedly connected to the outer wall of the upper end of the main rod (1).

8. The retractable tension fence for a nuclear power plant according to claim 1, characterized in that: The lower outer walls of the main rod (1), the positioning rod (7) and the fixing column (9) are all fixedly connected to a mounting base (11), and the positioning rope (6) and the wire mesh (8) are both made of stainless steel.

9. The retractable tension fence for a nuclear power plant according to claim 1, characterized in that: A through hole for the positioning rope (6) to pass through is provided inside the positioning rod (7), and a pressure sensor is arranged inside the through hole.

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