Infrared fence with alarm function

Abstract

The invention relates to an infrared fence with an alarm function, and relates to the technical field of on-site construction, the infrared fence comprises at least three fence columns, infrared sensors are arranged in the fence columns, each infrared sensor comprises a transmitting end and a receiving end, a center shaft column is vertically and fixedly arranged in each fence column, and the center shaft columns are connected with the transmitting ends and the receiving ends. A first rotating ring and a second rotating ring are rotationally arranged on the middle shaft column; a first mounting frame is fixedly arranged on the outer wall of the first rotating ring, the transmitting end is fixedly arranged on the first mounting frame, a second mounting frame is fixedly arranged on the outer wall of the second rotating ring, the receiving end is fixedly arranged on the second mounting frame, and a calibration mechanism is arranged between every two adjacent fence columns. And the calibration mechanism is used for driving the first rotating ring and the second rotating ring to rotate, so that the transmitting end is opposite to the receiving end on the adjacent fence column. The method has the advantages that the method adapts to construction areas of different shapes, the isolation area coincides with the construction areas as much as possible, and interference to life of surrounding residents is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of on-site construction, and in particular to an infrared fence with an alarm function. Background Art

[0002] During the construction of distribution lines, construction safety is of vital importance. In order to ensure construction safety, isolation belts or isolation fences are usually set up in the construction area to prevent non-construction personnel from entering the construction area. Nowadays, infrared fences are widely used in distribution line construction because they can detect in real time and promptly discover and warn non-construction personnel.

[0003] In the related art, an infrared fence is designed, which includes an alarm, four fence posts, and infrared sensors are arranged inside the fence posts. The infrared sensors are communicatively connected with the alarm device, and the infrared sensor includes a transmitting end and a receiving end, and the transmitting end and the receiving end are ninety degrees apart. When in use, the four fence posts are installed at the four corners of the construction area, and the transmitting end transmits infrared rays to the receiving ends of adjacent fence posts, and the receiving end receives the infrared rays emitted by the transmitting ends of adjacent fence posts. Once non-construction personnel enter between adjacent fence posts, the infrared rays emitted by the transmitting end are blocked, and the receiving end cannot receive the infrared rays. At this time, the alarm sounds an alarm to warn the non-construction personnel.

[0004] In the process of implementing this application, it was found that there are at least the following problems in this technology: the angle between the transmitting end and the receiving end cannot be adjusted, and the fence posts of this technology can only enclose a square isolation area. However, in actual construction, the shape of the construction area is often uncertain. Enclosing it in a square will cause the isolation area to be much larger than the original construction area, which may cause unnecessary impact on the lives of nearby residents. Summary of the invention

[0005] In order to adapt to construction areas of different shapes, make the isolation area overlap with the construction area as much as possible, and reduce interference with the lives of surrounding residents, the present application provides an infrared fence with an alarm function.

[0006] The infrared fence with alarm function provided in this application adopts the following technical solution: An infrared fence with an alarm function comprises at least three fence posts, wherein infrared sensors are arranged in the fence posts, wherein the infrared sensors comprise a transmitting end and a receiving end, wherein a central axis column is vertically and fixedly arranged in the fence posts, wherein a first rotating ring and a second rotating ring are rotatably arranged on the central axis column, and wherein a locking mechanism is arranged on the fence posts, wherein the locking mechanism can prevent the first rotating ring and the second rotating ring from rotating; wherein a first mounting frame is fixedly arranged on the outer wall of the first rotating ring, wherein the transmitting end is fixedly arranged on the first mounting frame, wherein a second mounting frame is fixedly arranged on the outer wall of the second rotating ring, wherein the receiving end is fixedly arranged on the second mounting frame, and wherein a calibration mechanism is arranged between adjacent fence posts, wherein the calibration mechanism is used to drive the first rotating ring and the second rotating ring to rotate, and to make the transmitting end on the fence post and the receiving end on the adjacent fence post face each other, wherein the transmitting end is used to transmit infrared rays to the receiving end of one of the adjacent fence posts, and wherein the receiving end is used to receive infrared rays from the transmitting end on another adjacent fence post.

[0007] By adopting the above technical solution, when the shape of the construction area is irregular, a suitable number of fence posts are selected, and the construction personnel first loosen the locking mechanism, and then use the calibration mechanism to adjust the angles of the first rotating ring and the second rotating ring, thereby changing the orientation of the transmitting end and the receiving end. During the adjustment process, the calibration mechanism can ensure that the transmitting end on the fence post is accurately aligned with the receiving end on the adjacent fence post, thereby ensuring the stable transmission of infrared rays; after the adjustment is completed, the locking mechanism is used to fix the first rotating ring and the second rotating ring to keep them at a suitable angle. In this way, the infrared fence can be flexibly arranged according to the shape of the actual construction area, which can not only effectively protect the construction area and issue an alarm in time to warn non-construction personnel, but also make the isolation area more closely fit the construction area, thereby minimizing interference with the lives of surrounding residents.

[0008] Preferably, the calibration mechanism comprises a tensioning rope, one end of which is connected to a first mounting frame, and the other end of which is connected to a second mounting frame on an adjacent fence post, and the tensioning rope is in a taut state.

[0009] By adopting the above technical solution, when it is necessary to adjust the angle of the transmitting end and the receiving end, the tensioning rope will generate tension on the first mounting frame and the second mounting frame, thereby driving the first rotating ring and the second rotating ring to rotate, and in the rotation process, since the tensioning rope is tightened and affected by the reverse tension, it remains straight in the direction of the tension, and the tensioning rope is parallel to the direction of the infrared ray, thereby automatically guiding the first rotating ring and the second rotating ring to rotate to the appropriate position, so that the transmitting end and the receiving end on the adjacent fence post are opposite to each other, thereby realizing the calibration function.

[0010] Preferably, the tensioning rope is elastic and stretchable.

[0011] By adopting the above technical solution, since the tensioning rope has elastic and stretchable characteristics, the tensioning rope can continue to extend after being straightened, and can ensure the tension applied to the first mounting frame and the second mounting frame, thereby improving the adaptability of the tensioning rope in the length direction and making the calibration process more convenient.

[0012] Preferably, a connecting rod is provided at each end of the tensioning rope, and the connecting rod is threadedly mounted on the first mounting frame or the second mounting frame, wherein one of the connecting rods is fixedly connected to one end of the tensioning rope, and the other connecting rod is commonly connected to the other end of the tensioning rope and is provided with a retractable assembly, and the retractable assembly is used to adjust the length of the tensioning rope between the two connecting rods.

[0013] By adopting the above technical solution, when adjusting the angles of the transmitting end and the receiving end, the length of the tensioning rope between the two connecting rods can be adjusted through the retractable assembly to meet the requirements of different distances between two adjacent fence posts, so as to be more convenient to adapt to the shape of complex construction areas. The connecting rod is threadedly installed on the first mounting frame or the second mounting frame, which facilitates the installation and disassembly of the tensioning rope. After the calibration is completed, the tensioning rope is removed to avoid the tensioning rope tripping over construction workers as much as possible.

[0014] Preferably, the retracting and releasing assembly includes an outer shell, a winding wheel, and a first knob. The outer shell is rotatably set on a connecting rod, a rope entry hole is opened on the side of the outer shell facing away from the connecting rod, and the winding wheel is rotatably set on the inner wall of the outer shell. The tensioning rope passes through the rope entry hole and enters the interior of the outer shell. The tensioning rope is fixed and wound around the winding wheel. The rope entry hole, the rotation center of the winding wheel, and the connecting rod are located on the same straight line. The first knob is rotatably set on the outside of the outer shell, and the first knob passes through the outer shell and is coaxially connected to the winding wheel.

[0015] By adopting the above technical solution, when it is necessary to adjust the length of the tensioning rope, it is only necessary to turn the first knob, and the first knob drives the winding wheel to rotate, thereby realizing the retraction and release of the tensioning rope. The design that the rope entry hole, the rotation center of the winding wheel, and the connecting rod are located on the same straight line ensures that the tension direction of the tensioning rope coincides with the tension direction of the connecting rod, so as to ensure that the tensioning rope is parallel to the ideal direction of infrared emission from the transmitting end, and the rotation coordination of the outer shell and the connecting rod can release the torsion caused to the tensioning rope when the connecting rod is threadedly installed.

[0016] Preferably, a group of rotating rollers are rotatably arranged in the rope inlet hole, the tensioning rope is located between the group of rotating rollers, and the peripheral walls of the rotating rollers are against the tensioning rope.

[0017] By adopting the above technical solution, when the tensioning rope enters and exits the rope inlet hole, the rotating roller will rotate with the movement of the tensioning rope, thereby effectively reducing the friction between the tensioning rope and the rope inlet hole, which not only reduces the wear of the tensioning rope during the retraction and release process, prolongs its service life, but also makes the retraction and release operation smoother.

[0018] Preferably, a locking block is fixedly provided on the outer shell, a first locking screw is threadedly provided on the locking block, and the first locking screw can abut against the first knob.

[0019] By adopting the above technical solution, after the tensioning rope is adjusted to an appropriate length, the first locking screw can be tightened so that the first locking screw is against the first knob, thereby limiting the rotation of the first knob and preventing the winding wheel from rotating to cause the length of the tensioning rope to change, thereby ensuring the stability of the calibration process.

[0020] Preferably, the locking mechanism includes a second knob, a second locking screw, and a pressure block. The second locking screw penetrates and is threadedly arranged on the side wall of the fence post. The second knob is fixedly arranged on the outer end of the second locking screw. The pressure block is rotatably arranged on the inner end of the second locking screw. The pressure block abuts against the first rotating ring and the second rotating ring at the same time.

[0021] By adopting the above technical solution, when it is necessary to lock the first rotating ring and the second rotating ring, the second knob is rotated to drive the second locking screw to rotate, so that the pressure block moves toward the first rotating ring and the second rotating ring until the pressure block abuts against the first rotating ring and the second rotating ring, thereby generating friction to prevent the first rotating ring and the second rotating ring from rotating.

[0022] Preferably, the pressing block is arranged in an arc shape, and the inner side of the pressing block is in contact with the outer walls of the first rotating ring and the second rotating ring at the same time.

[0023] By adopting the above technical solution, since the pressure block is arranged in an arc shape and the inner side is simultaneously in contact with the outer walls of the first rotating ring and the second rotating ring, the contact area between the pressure block and the first rotating ring and the second rotating ring is ensured, making the pressure effect more uniform and stable.

[0024] Preferably, a plurality of transmitting ends are evenly and spaced apart on the first mounting frame along the height direction, and a plurality of receiving ends are evenly and spaced apart on the second mounting frame along the height direction.

[0025] By adopting the above technical solution, a multi-layer infrared detection area is formed between the two fence posts, which increases the detection range to accommodate non-construction workers of different heights. Even if non-construction workers try to cross the fence from different heights, they can be detected in time, which greatly improves the protective effect of the infrared fence.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the first mounting frame and the second mounting frame that can rotate on the central axis, and the calibration mechanism, the angles of the transmitting end and the receiving end can be flexibly adjusted according to the different shapes of the construction area, so that the isolation area and the construction area are more closely matched, reducing the interference to the surrounding residents; 2. By setting a tightening rope and a retracting assembly, the tightening rope generates a pulling force on the first mounting frame and the second mounting frame, thereby driving the first rotating ring and the second rotating ring to rotate, so that the transmitting end and the receiving end on the adjacent fence post face each other, thereby realizing the calibration function; 3. By arranging multiple transmitting ends and receiving ends along the height direction on the first mounting frame and the second mounting frame, a multi-layer detection area is formed, which improves the detection effect of non-construction personnel of different heights and enhances the protection capability of the infrared fence. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an infrared fence with an alarm function provided in an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the internal structure of the fence post in an embodiment of the present application.

[0029] Figure 3 It is a partial enlarged view of the two ends of the tightening rope in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the cross-sectional structure of the retractable component in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the calibration of infrared sensors in two adjacent fence posts in an embodiment of the present application.

[0032] Explanation of the reference numerals: 1. fence post; 11. alarm device; 12. central axis column; 121. first rotating ring; 1211. first mounting bracket; 122. second rotating ring; 1221. second mounting bracket; 2. infrared sensor; 21. transmitting end; 22. receiving end; 3. locking mechanism; 31. second knob; 32. second locking screw; 33. pressure block; 4. calibration mechanism; 41. tension rope; 42. connecting rod; 43. retracting and releasing assembly; 431. outer shell; 432. winding wheel; 433. first knob; 434. rope entry hole; 435. rotating roller; 436. locking block; 437. first locking screw. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses an infrared fence with an alarm function. Figure 1 and Figure 2 , which comprises at least three fence posts 1, which are arranged in a cylindrical shape. An alarm device 11 is installed on the top of each fence post 1, and an infrared sensor 2 is installed inside. The infrared sensor 2 is connected to the alarm device 11 for communication, and the infrared sensor 2 comprises a transmitting end 21 and a receiving end 22. The alarm device specifically comprises a sound generator and an alarm light.

[0035] Reference Figure 1 and Figure 2 A central axis column 12 is vertically and fixedly arranged inside the fence post 1, and a first rotating ring 121 and a second rotating ring 122 are rotatably arranged on the central axis column 12. A locking mechanism 3 is arranged on the fence post 1, and the locking mechanism 3 can prevent the first rotating ring 121 and the second rotating ring 122 from rotating. A first mounting frame 1211 is fixedly arranged on the outer wall of the first rotating ring 121, and a plurality of transmitting ends 21 are evenly and spaced apart on the first mounting frame 1211 in the vertical direction. A second mounting frame 1221 is fixedly arranged on the outer wall of the second rotating ring 122, and a plurality of receiving ends 22 are evenly and spaced apart on the second mounting frame 1221.

[0036] Reference Figure 1 and Figure 5 A calibration mechanism 4 is provided between adjacent fence posts 1, and the calibration mechanism 4 is used to drive the first rotating ring 121 and the second rotating ring 122 to rotate, and to make the transmitting end 21 on the fence post 1 and the receiving end 22 on the adjacent fence post 1 face each other. The transmitting end 21 is used to transmit infrared rays to the receiving end 22 of one adjacent fence post 1, and the receiving end 22 is used to receive infrared rays from the transmitting end 21 on another adjacent fence post 1.

[0037] Reference Figures 1 to 5 When the shape of the construction area is irregular, select a suitable number of fence posts 1, drive the first rotating ring 121 and the second rotating ring 122 to rotate with the help of the calibration mechanism 4, and make the transmitting end 21 on the fence post 1 and the receiving end 22 on the adjacent fence post 1 face each other. The fence post 1 can emit or receive infrared rays in multiple directions in the circumferential direction, and the connection between the fence posts 1 is no longer restricted to a specific angle. Infrared rays can be connected arbitrarily between the fence posts 1 to adapt to different shapes of construction areas. In this way, not only can the construction area be effectively protected and an alarm be issued in time to warn non-construction personnel, but also the isolation area can be more closely matched with the construction area, minimizing interference with the lives of surrounding residents.

[0038] In order to drive the transmitting end 21 to face the receiving end 22 in another fence post 1, refer to Figure 1 , Figure 3 and Figure 5The calibration mechanism 4 includes a tension rope 41, which is elastic and stretchable. A connecting rod 42 is provided at each end of the tension rope 41, one of the connecting rods 42 is fixedly connected to one end of the tension rope 41, and the other connecting rod 42 is connected to the other end of the tension rope 41 to form a retractable assembly 43, which is used to adjust the length of the tension rope 41 between the two connecting rods 42. The tension rope 41 is threadedly mounted on the first mounting frame 1211 through one of the connecting rods 42, and is threadedly mounted on the second mounting frame 1221 in the adjacent fence post 1 through the other connecting rod 42. The tension rope 41 is in a taut state between the two fence posts 1.

[0039] Reference Figure 1 , Figure 3 and Figure 5 When the angles of the transmitting end 21 and the receiving end 22 need to be adjusted, one of the connecting rods 42 is installed on the first mounting frame 1211 of a fence post 1, and the other connecting rod 42 is installed on the second mounting frame 1221 of the adjacent fence post 1. Then, multiple construction workers cooperate with each other, one person holds a fence post 1 and pulls back, and the tightening rope 41 will generate tension on the first mounting frame 1211 and the second mounting frame 1221, thereby driving the first rotating ring 121 and the second rotating ring 122 to rotate. This makes the transmitting end 21 and the receiving end 22 on the adjacent fence post 1 face each other, realizing the calibration function.

[0040] In order to facilitate the adjustment of the length of the tension rope 41 and ensure the stability after adjustment, refer to Figure 3 and Figure 4 The retracting assembly 43 includes an outer shell 431, a winding wheel 432, and a first knob 433. The outer shell 431 is rotatably arranged on the connecting rod 42. A rope entry hole 434 is provided on the side of the outer shell 431 away from the connecting rod 42, and a group of rotating rollers 435 are rotatably arranged in the rope entry hole 434. The winding wheel 432 is rotatably arranged on the inner wall of the outer shell 431, and the tension rope 41 passes through the rope entry hole 434 and enters the inner part of the outer shell 431. The tension rope 41 is fixed and wound around the winding wheel 432. The tension rope 41 is located between a group of rotating rollers 435, and the peripheral wall of the rotating roller 435 is against the tension rope 41. The rope entry hole 434, the rotation center of the winding wheel 432, and the connecting rod 42 are located on the same straight line. The first knob 433 is rotatably arranged on the outer side of the outer shell 431, and the first knob 433 passes through the outer shell 431 and is coaxially connected with the winding wheel 432. A locking block 436 is fixedly disposed on the outer shell 431 , and a first locking screw 437 is threadedly disposed on the locking block 436 . The first locking screw 437 can abut against the first knob 433 .

[0041] Reference Figure 3 and Figure 4When the length of the tension rope 41 needs to be adjusted, the first knob 433 is turned, and the first knob 433 drives the winding wheel 432 to rotate, thereby realizing the retraction and release of the tension rope 41. After the tension rope 41 is adjusted to a suitable length, the first locking screw 437 is tightened, so that the first locking screw 437 and the first knob 433 are abutted, thereby limiting the rotation of the winding wheel 432 through the first knob 433, thereby adjusting the length of the tension rope 41.

[0042] In order to prevent the first rotating ring 121 and the second rotating ring 122 from rotating, refer to Figure 1 and Figure 2 The locking mechanism 3 includes a second knob 31, a second locking screw 32, and a pressing block 33. The second locking screw 32 penetrates and is threadedly arranged on the side wall of the fence post 1. The second knob 31 is fixedly arranged at the outer end of the second locking screw 32, and the pressing block 33 is rotatably arranged at the inner end of the second locking screw 32. The pressing block 33 is arranged in an arc shape, and a rubber pad for increasing friction is arranged on the inner surface of the pressing block 33. The inner side of the pressing block 33 is in contact with and abuts against the outer walls of the first rotating ring 121 and the second rotating ring 122.

[0043] Reference Figure 1 and Figure 2 When it is necessary to lock the first rotating ring 121 and the second rotating ring 122, the second knob 31 is rotated to drive the second locking screw 32 to rotate, so that the pressing block 33 approaches the first rotating ring 121 and the second rotating ring 122 until the pressing block 33 abuts against the first rotating ring 121 and the second rotating ring 122, thereby preventing the first rotating ring 121 and the second rotating ring 122 from rotating through friction.

[0044] The implementation principle of an infrared fence with an alarm function in an embodiment of the present application is as follows: when the shape of the construction area is irregular, a suitable number of fence posts 1 are selected. The construction personnel install one of the connecting rods 42 on the first mounting frame 1211 of a fence post 1, and install the other connecting rod 42 on the second mounting frame 1221 of the adjacent fence post 1, so that all adjacent fence posts 1 are connected by the tension rope 41. Then, the construction personnel rotate the second knob 31, and the second knob 31 drives the pressure block 33 away from the first rotating ring 121 and the second rotating ring 122 through the second locking screw 32. At this time, the first rotating ring 121 and the second rotating ring 122 can rotate freely. Then, multiple construction personnel cooperate with each other, one person holds a fence post 1 and pulls back, and the tension rope 41 will generate tension on the first mounting frame 1211 and the second mounting frame 1221, thereby driving the first rotating ring 121 and the second rotating ring 122 to rotate. Make the transmitting end 21 and the receiving end 22 on the adjacent fence post 1 face each other, so that the receiving end 22 can smoothly receive the infrared rays from the transmitting end 21 on the adjacent fence post 1. Finally, fix the fence post 1 on the ground, and ensure that all fence posts 1 are horizontal and located at the same height. Turn the second knob 31 to use the pressing block 33 to press and fix the first rotating ring 121 and the second rotating ring 122. The infrared fence can be flexibly arranged according to the shape of the actual construction area, reduce interference with the lives of surrounding residents, and effectively protect the construction area.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An infrared fence with an alarm function, comprising at least three fence posts (1), wherein an infrared sensor (2) is arranged inside the fence posts (1), wherein the infrared sensor (2) comprises a transmitting end (21) and a receiving end (22), and wherein: A central axis column (12) is vertically and fixedly arranged inside the fence post (1), and a first rotating ring (121) and a second rotating ring (122) are rotatably arranged on the central axis column (12). A locking mechanism (3) is arranged on the fence post (1), and the locking mechanism (3) can prevent the first rotating ring (121) and the second rotating ring (122) from rotating; a first mounting frame (1211) is fixedly arranged on the outer wall of the first rotating ring (121), and the transmitting end (21) is fixedly arranged on the first mounting frame (1211), and a second mounting frame (1211) is fixedly arranged on the outer wall of the second rotating ring (122). 21), the receiving end (22) is fixedly arranged on the second mounting frame (1221), and a calibration mechanism (4) is arranged between adjacent fence posts (1), the calibration mechanism (4) is used to drive the first rotating ring (121) and the second rotating ring (122) to rotate, and make the transmitting end (21) on the fence post (1) and the receiving end (22) on the adjacent fence post (1) face each other, the transmitting end (21) is used to transmit infrared rays to the receiving end (22) of one adjacent fence post (1), and the receiving end (22) is used to receive infrared rays from the transmitting end (21) on another adjacent fence post (1).

2. The infrared fence with alarm function according to claim 1, characterized in that: The calibration mechanism (4) comprises a tensioning rope (41), one end of which is connected to a first mounting frame (1211), and the other end of which is connected to a second mounting frame (1221) on an adjacent fence post (1), and the tensioning rope (41) is in a tensioned state.

3. The infrared fence with alarm function according to claim 2, characterized in that: The tension rope (41) is elastic and stretchable.

4. The infrared fence with alarm function according to claim 2, characterized in that: A connecting rod (42) is provided at each end of the tensioning rope (41), and the connecting rod (42) is threadedly mounted on the first mounting frame (1211) or the second mounting frame (1221), wherein one of the connecting rods (42) is fixedly connected to one end of the tensioning rope (41), and the other connecting rod (42) is commonly connected to the other end of the tensioning rope (41) and is provided with a retractable assembly (43), and the retractable assembly (43) is used to adjust the length of the tensioning rope (41) between the two connecting rods (42).

5. The infrared fence with alarm function according to claim 4, characterized in that: The retracting and releasing assembly (43) comprises an outer shell (431), a winding wheel (432), and a first knob (433); the outer shell (431) is rotatably arranged on the connecting rod (42); a rope entry hole (434) is provided on the side of the outer shell (431) away from the connecting rod (42); the winding wheel (432) is rotatably arranged on the inner wall of the outer shell (431); the tensioning rope (41) passes through the rope entry hole (434) and enters the inner part of the outer shell (431); the tensioning rope (41) is fixed and wound around the winding wheel (432); the rope entry hole (434), the rotation center of the winding wheel (432), and the connecting rod (42) are located on the same straight line; the first knob (433) is rotatably arranged on the outer side of the outer shell (431); the first knob (433) passes through the outer shell (431) and is coaxially connected to the winding wheel (432).

6. The infrared fence with alarm function according to claim 5, characterized in that: A group of rotating rollers (435) are rotatably arranged in the rope inlet hole (434), the tension rope (41) is located between the group of rotating rollers (435), and the peripheral wall of the rotating roller (435) abuts against the tension rope (41).

7. The infrared fence with alarm function according to claim 5, characterized in that: A locking block (436) is fixedly disposed on the outer shell (431), and a first locking screw (437) is threadedly disposed on the locking block (436), and the first locking screw (437) can abut against the first knob (433).

8. The infrared fence with alarm function according to claim 1, characterized in that: The locking mechanism (3) comprises a second knob (31), a second locking screw (32), and a pressure block (33); the second locking screw (32) penetrates through and is threadedly arranged on the side wall of the fence post (1); the second knob (31) is fixedly arranged on the outer end of the second locking screw (32); the pressure block (33) is rotatably arranged on the inner end of the second locking screw (32); the pressure block (33) abuts against the first rotating ring (121) and the second rotating ring (122) at the same time.

9. The infrared fence with alarm function according to claim 8, characterized in that: The pressing block (33) is arranged in an arc shape, and the inner side of the pressing block (33) is in contact with the outer walls of the first rotating ring (121) and the second rotating ring (122).

10. The infrared fence with alarm function according to claim 1, characterized in that: A plurality of transmitting ends (21) are evenly and spaced apart on the first mounting frame (1211) along the height direction, and a plurality of receiving ends (22) are evenly and spaced apart on the second mounting frame (1221) along the height direction.

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