Optical fiber perimeter protection alarm device

Abstract

The utility model discloses an optical fiber perimeter protection alarm device which comprises a protection shell, the upper end of the protection shell is fixedly connected with a sealing cover, the lower end of the sealing cover is fixedly connected with a rubber pad, the sealing cover is connected with a guide rail in a sliding mode, the guide rail penetrates through the sealing cover, the rubber pad and the protection shell, and four sliding plates are connected in the protection shell in a sliding mode. The vent groove is formed in the guide rail, the air storage bag is communicated with the air outlet pipes, and high-pressure air is filled in the air storage bag, so that when the sliding block falls down along the guide rail and passes through the vent groove, the air outlet pipes at the two ends of the sliding block are not blocked by the guide rail, the high-pressure air in the air storage bag is released instantly, and the whole air outlet pipe inner hopper is filled with air through the vent groove. Therefore, the air bag expands instantly, the optical fiber sensing alarm can be protected in all directions, and the optical fiber sensing alarm is prevented from being damaged by impact force generated when the optical fiber sensing alarm falls to the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of security equipment, in particular to an optical fiber perimeter protection alarm device. Background Art

[0002] The leap of optical fiber technology is gradually dominating the security field with its low loss, long-distance transmission, cost reduction and excellent technical performance. With these advantages, optical fiber alarms are increasingly widely used in security systems and have become an important tool for protecting safety.

[0003] In this regard, the patent number "CN219676673U" is a protective structure for a fiber optic sensing alarm device. Due to the gravity of the counterweight ring, the device keeps the counterweight ring facing downward when it is in the air after it falls off. However, when it falls to the ground, the counterweight ring falls to the ground and is hit, which will generate an upward impact. The heavier the counterweight ring, the greater the impact on the fiber optic sensing alarm, which is likely to cause damage to the precision components inside the device, thereby affecting its normal function and service life. Based on this, this application proposes a fiber optic perimeter protection alarm device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an optical fiber perimeter protection alarm device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fiber optic perimeter protection alarm device comprises a protective shell, a sealing cover is fixedly connected to the upper end of the protective shell, a rubber pad is fixedly connected to the lower end of the sealing cover, a guide rail is slidably connected to the sealing cover, the guide rail passes through the sealing cover, the rubber pad and the protective shell respectively, four sliding plates are slidably connected in the protective shell, a fiber optic sensing alarm is installed on the sliding plate, a small spring is fixedly connected to the lower end of the sliding plate, one end of the small spring away from the sliding plate is fixedly connected to the inner wall of the protective shell, a buffer mechanism for buffering the fiber optic sensing alarm is installed in the protective shell, a plurality of ventilation grooves are provided on the guide rail, a sliding block is slidably connected to the guide rail, the guide rail passes through the sliding block, an air storage bag is fixedly connected to the fiber optic sensing alarm, air bags are fixedly connected to the four sides of the fiber optic sensing alarm respectively, an air outlet pipe is fixedly connected to the air storage bag, the air outlet pipe is communicated with three air bags, the air outlet pipe is communicated with the sliding block, a connecting pipe is fixedly connected to the air outlet pipe, and one end of the connecting pipe away from the air outlet pipe is communicated with the remaining air bags.

[0007] Preferably, the buffer mechanism includes a telescopic tube and a large spring, one end of the telescopic tube is fixedly installed on the lower end of the fiber optic sensor alarm, and the other end of the telescopic tube is fixedly installed on the inner bottom wall of the protective shell, one end of the large spring is fixedly installed on the lower end of the fiber optic sensor alarm, and the other end of the large spring is fixedly installed on the inner bottom end of the telescopic tube.

[0008] Preferably, the ventilation grooves are evenly distributed on the guide rail.

[0009] Preferably, a pressure valve is installed in the air outlet pipe.

[0010] Preferably, the connecting pipe is made of rubber.

[0011] Preferably, a plurality of heat dissipation grooves are provided at the lower end of the protective shell, and the heat dissipation grooves are evenly distributed at the lower end of the protective shell.

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

[0013] 1. By arranging a ventilation groove on the guide rail, the air storage bag is connected with the air outlet pipe, and there is high-pressure gas inside. When the sliding block falls along the guide rail and passes through the ventilation groove, there is no obstruction of the guide rail in the middle of the air outlet pipes at both ends of the sliding block. The high-pressure gas in the air storage bag is released instantly, and the entire air outlet pipe is filled with air through the ventilation groove, thereby causing the air bag to expand instantly, which can provide all-round protection for the fiber optic sensing alarm and prevent the fiber optic sensing alarm from being damaged by the impact generated when it falls to the ground.

[0014] 2. A buffer mechanism is also installed at the lower end of the fiber optic sensor alarm. When the equipment contacts the ground, the cooperation of the large spring and the telescopic tube can absorb part of the impact force and reduce the impact force of the fiber optic sensor alarm. At the same time, the small spring cooperates with the sliding plate to move a certain distance, which can also absorb the impact force of falling, thereby reducing the impact force of the fiber optic sensor alarm caused by falling to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an optical fiber perimeter protection alarm device proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the parts including the sealing cover, rubber pad, air bag, sliding plate, air outlet pipe, air storage bag and sliding block proposed in the utility model;

[0017] Figure 3 This is a schematic cross-sectional structure diagram of the optical fiber sensor alarm, sliding plate and telescopic cylinder proposed in the utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of the guide rail, ventilation groove, protective shell and heat dissipation groove proposed by the utility model;

[0019] In the figure: 1 guide rail, 2 ventilation groove, 3 protective shell, 4 cover, 5 rubber pad, 6 air bag, 7 sliding plate, 8 exhaust pipe, 9 air storage bag, 10 small spring, 11 optical fiber sensor alarm, 12 telescopic tube, 13 large spring, 14 connecting pipe, 15 sliding block, 16 heat dissipation groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 , a fiber optic perimeter protection alarm device, including a protective shell 3, characterized in that a cover 4 is fixedly connected to the upper end of the protective shell 3, a rubber pad 5 is fixedly connected to the lower end of the cover 4, a guide rail 1 is slidably connected to the cover 4, the guide rail 1 passes through the cover 4, the rubber pad 5 and the protective shell 3 respectively, four sliding plates 7 are slidably connected in the protective shell 3, and a fiber optic sensor alarm 11 is installed on the sliding plate 7, wherein the structure and installation method of the fiber optic sensor alarm 11 are both prior art. A small spring 10 is fixedly connected to the lower end of the sliding plate 7, and one end of the small spring 10 away from the sliding plate 7 is fixedly connected to the inner wall of the protective shell 3, and a buffer mechanism for buffering the fiber optic sensor alarm 11 is installed in the protective shell 3, and the buffer mechanism includes a telescopic cylinder 12 and a large spring 13, one end of the telescopic cylinder 12 is fixedly installed at the lower end of the fiber optic sensor alarm 11, and the other end of the telescopic cylinder 12 is fixedly installed on the inner bottom wall of the protective shell 3, one end of the large spring 13 is fixedly installed at the lower end of the fiber optic sensor alarm 11, and the other end of the large spring 13 is fixedly installed at the inner bottom end of the telescopic cylinder 12.

[0022] A plurality of ventilation grooves 2 are provided on the guide rail 1, and a sliding block 15 is slidably connected to the guide rail 1. The guide rail 1 passes through the sliding block 15. Furthermore, the sliding block 15 slides with the guide rail 1 in a sealed manner, and the sliding block 15 is hollow, so that the air outlet pipes 8 at both ends can be ventilated through the ventilation grooves 2.

[0023] The optical fiber sensing alarm 11 is fixedly connected to an air storage bag 9, and the four sides of the optical fiber sensing alarm 11 are fixedly connected to air bags 6 respectively. The air storage bag 9 is fixedly connected to an air outlet pipe 8, which is in communication with the three air bags 6, and the air outlet pipe 8 is in communication with the sliding block 15. The air outlet pipe 8 is fixedly connected to a connecting pipe 14, and one end of the connecting pipe 14 away from the air outlet pipe 8 is in communication with the remaining air bags 6. It should be noted that, if Figure 2As shown, the air storage bag 9 is communicated with the air outlet pipe 8, and the air outlet pipe 8 passes through the sliding block 15 and is communicated with the sliding block 15. There is no air outlet pipe 8 inside the sliding block 15. At the same time, the air outlet pipe 8 is connected with the air bag 6 in turn around a circle, among which the air bag 6 next to the sliding block 15 is not connected with the air outlet pipe 8. Therefore, a connecting pipe 14 is provided to communicate with the air outlet pipe 8 and the air bag 6, so that when falling, the whole will fall to avoid damage to parts.

[0024] The connecting pipe 14 is made of rubber, and the ventilation grooves 2 are evenly distributed on the guide rail 1 .

[0025] A pressure valve is installed in the air outlet pipe 8. It should be noted that the function of the pressure valve in the air outlet pipe 8 is that when the sliding block 15 is connected to the air outlet pipe 8 at both ends through the ventilation groove 2, the pressure valve opens, so that the gas in the air storage bag 9 is released instantly, and the air bag 6 can be quickly inflated to prevent the air bag 6 from not being fully inflated when falling to the ground, thereby avoiding damage to the optical fiber sensing alarm 11.

[0026] A plurality of heat dissipation grooves 16 are provided at the lower end of the protective shell 3, and the heat dissipation grooves 16 are evenly distributed at the lower end of the protective shell 3. It should be noted that the heat dissipation grooves 16 can dissipate heat for the optical fiber sensing alarm 11, and prevent the enclosed space in the protective shell 3 from interfering with the optical fiber sensing alarm 11, thereby ensuring the normal use of the optical fiber sensing alarm 11.

[0027] When the device becomes loose and starts to fall, it starts to fall along the guide rail 1, the sliding block 15 slides on the guide rail 1, and the entire device falls along the guide rail 1. Figure 2 As shown, the air storage bag 9 is connected to the air outlet pipe 8, so the right air outlet pipe 8 always keeps gas inside, but the air outlet pipes 8 at both ends of the sliding block 15 cannot be ventilated due to the obstruction of the guide rail 1. When the sliding block 15 slides down to the position of the ventilation groove 2, since the ventilation groove 2 runs through the guide rail 1, the air outlet pipes 8 at both ends of the sliding block 15 are instantly ventilated under the action of the pressure valve, thereby causing the four air bags 6 to be instantly inflated and expanded, providing all-round protection for the fiber optic sensor alarm 11. At the same time, the large spring 13 at the lower end of the fiber optic sensor alarm 11 drives the telescopic cylinder 12 to contract, which can absorb part of the energy of the equipment falling, and the fiber optic sensor alarm 11 at the lower end of the sliding plate 7 can also absorb part of the energy, thereby protecting the fiber optic sensor alarm 11 to the maximum extent.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An optical fiber perimeter protection alarm device, comprising a protective shell (3), characterized in that: The upper end of the protective shell (3) is fixedly connected to a cover (4), the lower end of the cover (4) is fixedly connected to a rubber pad (5), the cover (4) is slidably connected to a guide rail (1), the guide rail (1) respectively passes through the cover (4), the rubber pad (5) and the protective shell (3), four sliding plates (7) are slidably connected in the protective shell (3), an optical fiber sensing alarm (11) is installed on the sliding plate (7), a small spring (10) is fixedly connected to the lower end of the sliding plate (7), one end of the small spring (10) away from the sliding plate (7) is fixedly connected to the inner wall of the protective shell (3), and a buffer mechanism for buffering the optical fiber sensing alarm (11) is installed in the protective shell (3). The guide rail (1) is provided with a plurality of ventilation grooves (2). A sliding block (15) is slidably connected to the guide rail (1). The guide rail (1) passes through the sliding block (15). An air storage bag (9) is fixedly connected to the optical fiber sensing alarm (11). Air bags (6) are fixedly connected to the four sides of the optical fiber sensing alarm (11). An air outlet pipe (8) is fixedly connected to the air storage bag (9). The air outlet pipe (8) is connected to three air bags (6). The air outlet pipe (8) is connected to the sliding block (15). A connecting pipe (14) is fixedly connected to the air outlet pipe (8). One end of the connecting pipe (14) away from the air outlet pipe (8) is connected to the remaining air bags (6).

2. The optical fiber perimeter protection alarm device according to claim 1, characterized in that: The buffer mechanism comprises a telescopic tube (12) and a large spring (13); one end of the telescopic tube (12) is fixedly mounted on the lower end of the optical fiber sensing alarm (11); the other end of the telescopic tube (12) is fixedly mounted on the inner bottom wall of the protective shell (3); one end of the large spring (13) is fixedly mounted on the lower end of the optical fiber sensing alarm (11); and the other end of the large spring (13) is fixedly mounted on the inner bottom end of the telescopic tube (12).

3. The optical fiber perimeter protection alarm device according to claim 1, characterized in that: The ventilation grooves (2) are evenly distributed on the guide rail (1).

4. The optical fiber perimeter protection alarm device according to claim 1, characterized in that: A pressure valve is installed in the air outlet pipe (8).

5. The optical fiber perimeter protection alarm device according to claim 1, characterized in that: The connecting pipe (14) is made of rubber.

6. The optical fiber perimeter protection alarm device according to claim 1, characterized in that: A plurality of heat dissipation grooves (16) are provided at the lower end of the protective shell (3), and the heat dissipation grooves (16) are evenly distributed at the lower end of the protective shell (3).

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