Automatic protective fence

Abstract

The utility model provides an automatic protection fence which comprises a first AGV trolley and a second AGV trolley. A first stand column is installed on the top of the first AGV, a second stand column is installed on the top of the second AGV, a telescopic isolation assembly is installed between the first stand column and the second stand column, and the first AGV is connected with the second AGV through a connecting mechanism. Compared with the prior art, in the erecting process of the fence, the fence does not need to be transferred through manpower any more, then the fence can be combined to meet the requirements of various edge work, application is more flexible, the labor intensity of the edge work is reduced, and the safety risk of the edge work is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection, in particular to an automatic protection enclosure. Background Art

[0002] At present, the protection of the gate slot orifice of a hydropower station mostly adopts a steel protection railing with a base. When it is necessary to carry out a protection enclosure at the edge position of the orifice, the steel enclosure is manually carried to the orifice area for safety protection. And due to the differences in the orifice sizes of various gates, it is also necessary to fabricate protection enclosures of various specifications. This kind of protection method has a large labor intensity in on-site operations, a high safety risk in edge operations, and the daily storage of the guardrails occupies a large amount of dam surface space, and it is difficult to manage the enclosures classified. Content of the Utility Model

[0003] The purpose of the utility model is to provide an automatic protection enclosure. Through the arrangement of the first AGV cart and the second AGV cart, it is no longer necessary to manually transfer the enclosure, reducing the labor intensity of edge operations and reducing the safety risk of edge operations. In order to achieve the above technical features, the purpose of the utility model is realized as follows:

[0004] An automatic protection enclosure includes a first AGV cart and a second AGV cart;

[0005] A first upright post is installed on the top of the first AGV cart, a second upright post is installed on the top of the second AGV cart, a telescopic isolation component is installed between the first upright post and the second upright post, and the first AGV cart is connected to the second AGV cart through a connecting mechanism.

[0006] The telescopic isolation component includes a rope. The first end of the rope is connected to a first wire reel installed on the first upright post, and the second end of the rope is connected to a second wire reel installed on the second upright post.

[0007] Both the first wire reel and the second wire reel include a housing. A connecting shaft is rotatably installed on the housing. The first end of a torsion spring sleeved outside the connecting shaft is connected to the connecting shaft, and the second end of the torsion spring is connected to a rope winding disc sleeved outside the torsion spring. The two ends of the rope are respectively connected to the rope winding discs of the first wire reel and the second wire reel;

[0008] The first wire reel and the second wire reel further include a locking mechanism. The locking mechanism includes a ratchet installed on the side of the rope winding disc. A pawl and an elastic component are installed on the housing. The pawl meshes with the ratchet under the action of the elastic component, and a hand wheel connected to the connecting shaft is installed outside the housing.

[0009] The rope is a steel wire rope.

[0010] The connecting mechanism includes a T-shaped connecting pin installed on the side of the first AGV cart. One end of the T-shaped connecting pin is connected to the output shaft of the motor, and a groove adapted to the T-shaped connecting pin is provided on the side of the second AGV cart opposite to the first AGV cart.

[0011] Magnetic stripe sensors are respectively installed at the bottoms of the first AGV cart and the second AGV cart. During operation, the first AGV cart and the second AGV cart move to a preset position under the guidance of a magnetic stripe track.

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

[0013] 1. By setting the first AGV cart and the second AGV cart, it is no longer necessary to manually transfer the protective fence, reducing the labor intensity of edge operations and the safety risks of edge operations.

[0014] 2. By arranging a torsion spring and a rope winding disc on the connecting shaft in the housing of the first wire reel and the second wire reel, the rope can be automatically wound and unwound under the cooperation of the first AGV cart and the second AGV cart, greatly improving the operation convenience. This design not only improves the work efficiency but also reduces the operation difficulty, making the use of the protective fence more simple and fast.

[0015] 3. Through the structural design of the handwheel, ratchet and pawl, the rope can be stably locked in the required position to prevent accidental release or loosening.

[0016] 4. Through the combined application of multiple protective fences of the present application, it can meet the requirements of various edge operations, and the application is flexible. Description of the Drawings

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0018] Figure 1 is an external view of an automatic protective fence in an initial state provided by an embodiment of the present utility model;

[0019] Figure 2 is an external view of an automatic protective fence in a working state provided by an embodiment of the present utility model;

[0020] Figure 3 is an internal structural schematic diagram of the first wire reel or the second wire reel provided by an embodiment of the present utility model;

[0021] Figure 4 is a cross-sectional view of the first wire reel or the second wire reel provided by an embodiment of the present utility model;

[0022] Figure 5 It is a schematic structural diagram of the connection mechanism provided by the embodiment of the present utility model;

[0023] Figure 6 It is a schematic structural diagram of the groove provided by the embodiment of the present utility model;

[0024] Figure 7 It is a schematic diagram of the automatic operation plan when the automatic protection enclosure provided by the embodiment of the present utility model is applied to the edge protection of the water storage gate groove of a hydropower station;

[0025] In the figure: the first AGV cart 1, the second AGV cart 2, the first upright post 3, the second upright post 4, the rope 5, the first wire reel 6, the second wire reel 7, the housing 8a, the connecting shaft 8b, the torsion spring 8c, the wire spool 8d, the ratchet 8e, the ratchet pawl 8f, the elastic member 8g, the handwheel 8h, the T-shaped connecting pin 9, the motor 10, the groove 11, the boundary of the water storage gate groove of the hydropower station 12, the magnetic stripe track 13. Specific embodiments

[0026] The following further describes the embodiments of the present utility model with reference to the accompanying drawings.

[0027] See the attached Figure 1-7 , in order to achieve the above technical features, the object of the present utility model is realized as follows:

[0028] An automatic protection enclosure includes a first AGV cart 1 and a second AGV cart 2; a first upright post 3 is installed on the top of the first AGV cart 1, a second upright post 4 is installed on the top of the second AGV cart, a telescopic isolation component is installed between the first upright post 3 and the second upright post 4, and the first AGV cart 1 is connected to the second AGV cart 2 through a connection mechanism. In the initial state of the enclosure of this application, the first AGV cart 1 is connected to the second AGV cart 2 through the connection mechanism and is connected in series as a whole; after receiving the instruction to start working, the first AGV cart 1 and the second AGV cart 2 start and move to the vicinity of the preset position of the enclosure according to the pre-planned route, and then the connection between the first AGV cart 1 and the second AGV cart 2 is released. According to the requirements of the preset position of the enclosure and the relationship between the parking positions of the first AGV cart 1 and the second AGV cart 2, a scheme of automatically selecting one cart to brake and the other cart to drive in the opposite direction or both carts to drive in the opposite direction is selected. At the same time, the overall length of the telescopic isolation component is continuously increased until the enclosure of this application completes the erection of the preset position, and then the two carts are controlled to be in a braking state, that is, the entire erection process is completed; compared with the prior art, the above enclosure erection process no longer requires manual transfer of the enclosure. Secondly, the combination of multiple enclosures of this application can be used to meet the needs of various edge operations, with more flexible application, and reduces the labor intensity and safety risks of edge operations.

[0029] Furthermore, the telescopic isolation component includes a rope 5. The first end of the rope 5 is connected to a first wire reel 6 installed on the first upright post 3, and the second end of the rope 5 is connected to a second wire reel 7 installed on the second upright post 4. During the erection process of the enclosure of this application, one of the trolleys brakes the other trolley to travel in the opposite direction or the two trolleys travel in the opposite direction. Meanwhile, under the pulling force between the two trolleys, the rope 5 in the first wire reel 6 and the second wire reel 7 is continuously pulled outwards, thereby increasing the overall length of the telescopic isolation component.

[0030] Furthermore, both the first wire reel 6 and the second wire reel 7 include a housing 8a. A connecting shaft 8b is rotatably installed on the housing 8a. The first end of a torsion spring 8c sleeved outside the connecting shaft 8b is connected to the connecting shaft 8b, and the second end of the torsion spring 8c is connected to a rope winding disc 8d sleeved outside the torsion spring 8c. The two ends of the rope 5 are respectively connected to the rope winding disc 8d of the first wire reel 6 and the rope winding disc 8d of the second wire reel 7. The first wire reel and the second wire reel further include a locking mechanism. The locking mechanism includes a ratchet 8e installed on the side of the rope winding disc 8d. A pawl 8f and an elastic member 8g are installed on the housing 8a. The pawl 8f meshes with the ratchet 8e under the action of the elastic member 8g. A handwheel 8h connected to the connecting shaft 8b is installed outside the housing 8a. During operation, the rope 5 can automatically contract and wind inside the rope winding disc 8d under the action of the torsion spring 8c, and under the action of an external pulling force, the rope 5 is pulled out from the housing 8a. Thus, through the setting of the torsion spring, in cooperation with the pulling force between the two trolleys, the elongation and recovery of the rope 5 are realized. In order to avoid the accidental release of the rope 5 or to lock the position of the rope 5, the following steps can be operated: First, rotate the handwheel 8h in the compression direction of the torsion spring 8c until the torsion spring 8c reaches its limit compression position. Subsequently, by controlling the pawl 8f, its teeth are made to engage with the tooth grooves of the ratchet 8e for locking. In this way, even if the torsion spring 8c has a tendency to release force, since the ratchet 8e is locked by the teeth of the pawl 8f, its rotation will be restricted, thereby ensuring the stability and safety of the rope 5 and preventing it from being accidentally released. Through the cooperation of the ratchet 8e, the pawl 8f and the handwheel 8h, the tightness of the rope 5 in the locked state can be adjusted.

[0031] Furthermore, the rope 5 is a steel wire rope to ensure the durability and stability of the rope.

[0032] Further, the connecting mechanism includes a T-shaped connecting pin 9 installed on the side of the first AGV cart 1. One end of the T-shaped connecting pin is connected to the output shaft of the motor 10. A groove 11 adapted to the T-shaped connecting pin 9 is provided on the second AGV cart 2 on the side opposite to the first AGV cart 1. By driving the T-shaped connecting pin 9 to rotate through the motor 10 to change the angle of the T-shaped connecting pin 9, connection or disconnection between the two carts can be achieved in cooperation with the movement of the first AGV cart 1 or the second AGV cart 2.

[0033] Further, magnetic strip sensors are respectively installed at the bottoms of the first AGV cart 1 and the second AGV cart 2. During operation, the first AGV cart and the second AGV cart move to a preset position under the guidance of a magnetic strip track. The magnetic strip sensor identifies the path by detecting the magnetic field, enabling the first AGV cart and the second AGV cart to stay within the magnetic strip track and identifying the direction of movement. The combined use of the magnetic strip sensor and the magnetic strip track realizes the magnetic navigation of the AGV cart.

Claims

1. An automatic protective enclosure, characterized in that: It includes a first AGV cart and a second AGV cart; A first column is installed on the top of the first AGV cart, a second column is installed on the top of the second AGV cart, a telescopic isolation component is installed between the first column and the second column, and the first AGV cart is connected to the second AGV cart through a connecting mechanism; The telescopic isolation component includes a rope, the first end of the rope is connected to a first wire reel installed on the first column, and the second end of the rope is connected to a second wire reel installed on the second column; Both the first wire reel and the second wire reel include a housing, a connecting shaft is rotatably installed on the housing, the first end of a torsion spring sleeved outside the connecting shaft is connected to the connecting shaft, the second end of the torsion spring is connected to a wire spool sleeved outside the torsion spring, and the two ends of the rope are respectively connected to the wire spools of the first wire reel and the second wire reel; The first wire reel and the second wire reel further include a locking mechanism, the locking mechanism includes a ratchet fixedly installed on the connecting shaft, a pawl and an elastic component are installed on the housing, the pawl is engaged with the ratchet under the action of the elastic component, and a handwheel connected to the connecting shaft is installed outside the housing.

2. The automatic protection enclosure according to claim 1, wherein: The rope is a steel wire rope.

3. The automatic protection enclosure according to claim 1, wherein: The connecting mechanism includes a T-shaped connecting pin installed on the side of the first AGV cart, one end of the T-shaped connecting pin is connected to the output shaft of the motor, and a groove adapted to the T-shaped connecting pin is provided on the side of the second AGV cart opposite to the first AGV cart.

4. The automatic protection fence according to claim 1, wherein: Magnetic stripe sensors are respectively installed at the bottoms of the first AGV cart and the second AGV cart. During operation, the first AGV cart and the second AGV cart move to a preset position under the guidance of a magnetic stripe track.

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