CN204696556U - A kind of 10kV bypass cable is built on stilts laid street device - Google Patents

Abstract

The utility model provides a 10kV bypass cable overhead laying device for crossing the street, which includes the second support assembly of the first support assembly with the same structure, two lead-in brackets on the pole, support ropes, several moving blocks, and the moving blocks are connected with traction ropes and 2 infrared distance measuring alarms; the first support assembly includes a base, a lifting rod and a driver; 2 guide brackets on the rods are respectively provided at the upper ends of the 2 lifting rods; the support rope is used to pass through the 2 rods and guide the brackets It is used to support each mobile trolley; the mobile trolley is used to support the bypass cables that need to cross the street and can slide left and right by the support rope under the traction of the mobile trolley connected to the traction rope; the two infrared distance measuring alarms are on the top of the two lifting rods respectively. One is fixedly installed and the installation direction is opposite. The utility model has the advantages of simple structure, low cost, portability, convenient use and strong applicability, which can improve the repair efficiency of the power supply department and ensure operation safety.

Description

A 10kV bypass cable overhead laying device for crossing the street

technical field

The utility model relates to the technical field of power distribution bypass operation, in particular to a street-crossing device for overhead laying of 10kV bypass cables.

Background technique

The bypass cable overhead laying bracket is one of the commonly used tools for the power supply department to carry out bypass operations. It is mainly used for laying bypass cables across the street during bypass operations. At present, the common overhead laying support for crossing the street is inconvenient to operate, and the on-site installation work is cumbersome. It requires high operating skills of the operators, and it cannot be automatically raised and lowered, which affects the efficiency of the bypass operation. For example, the Chinese patent document whose authorized announcement number is CN203747342U discloses an adjustable mobile cable overhead support device. It can effectively meet the actual needs of overhead laying of bypass cables to cross the street during emergency repair of power supply. The device that relies on power tools to carry out overhead laying and maintenance of bypass cables is also currently being researched, such as the Chinese patent document whose application publication number is CN103762520A, which discloses a kind of electric mobile platform for 10kV distribution line bypass operation, although it can Realize automatic lifting, but it is inconvenient when carrying out cable crossing the street, and structure is relatively complicated, and cost is higher.

In addition, in the actual operation process, since the bypass cable needs to be laid overhead to cross the street, it is inevitable that vehicles will pass under the erected bypass cable during construction. If a super-high vehicle passes close by, it is easy to hang up or pull away the overhead cable , is prone to danger, so it is necessary to effectively monitor and warn the approach of super-high vehicles during the construction process to ensure the safety of bypass operations, but the current common bypass cable overhead laying devices do not have such functions.

Utility model content

The purpose of this utility model is to provide a 10kV bypass cable overhead laying street crossing device with simple structure, low cost, easy to carry, easy to operate, and can effectively monitor the approach of super-high vehicles to ensure safe operation.

The technical solution of the utility model is: the 10kV bypass cable overhead laying street crossing device of the utility model, its structural characteristics are: including the first support assembly, the second support assembly, the guide bracket on the pole, the support rope, the moving block, the moving block Connect the traction rope and infrared distance measuring alarm;

The above-mentioned first support assembly includes a base, a lifting rod and a driver; the lifting rod and the driver are arranged on the base; the driver is connected to the lifting rod in transmission;

The structure of the second support assembly is the same as that of the first support assembly; when in use, the second support assembly and the first support assembly are separately located on both sides of the street;

There are two same lead-in brackets on the rod, and the two lead-in brackets on the rod are respectively provided with one at the upper end of the lifting rod of the first support assembly and at the upper end of the lifting rod of the second support assembly;

When the support rope is used, it passes through two poles and is guided into the bracket and is supported by the two poles leading into the bracket; both ends of the support rope are fixed and reliable connected to the ground;

The moving blocks are evenly spaced on the supporting rope; each moving block is connected to each other through the moving block connecting the traction rope and can move left and right on the supporting rope under the traction of the moving block connected to the pulling rope; The bypass cable crosses the street;

There are 2 infrared ranging alarms; the 2 infrared ranging alarms are respectively fixedly installed on the top of the lifting rod of the first supporting assembly and the top of the lifting rod of the second supporting assembly, and the 2 infrared ranging The installation direction of the distance measuring alarm is opposite.

A further solution is: the base of the above-mentioned first support assembly includes a fixed frame and an adjustment handwheel; the fixed frame is composed of 2 supporting beams and 1 mounting beam; 2 supporting beams are arranged in parallel; The middle part of the root support beam is fixedly connected; the upper end of the middle part of the installation beam is provided with a mounting flange; there are 4 adjustment handwheels, and the 4 adjustment handwheels are respectively provided at the ends of the two support beams of the fixed frame; The above-mentioned lifting rod is fixedly installed on the mounting beam by its lower end through the mounting flange at the upper end of the middle part of the mounting beam of the fixing frame; the driver is fixedly installed on the mounting beam of the fixing frame; Contract downward; the driver is an electro-hydraulic drive mechanism or an electro-pneumatic drive mechanism.

A further solution is: the above-mentioned lead-in bracket on the rod includes a connecting plate, a connecting arm, a hanging arm and a hanging ring; the rear end of the connecting arm is fixedly connected to the upper end of the connecting plate; the front end of the connecting arm is fixedly connected to the middle part of the upper end of the hanging arm; The hanging arm is a groove body with the opening downward; the hanging ring is a semi-circular piece, and the hanging ring is fixed in the groove of the hanging arm; there are 3 to 6 hanging rings, and each hanging ring is in the groove of the hanging arm. Evenly arranged; the lead-in bracket on the rod is fixedly connected with the upper end of the lifting rod through the connecting plate and the connecting arm protrudes forward.

A further solution is: the above-mentioned mobile tackle includes a roller assembly, a rotating support shift fork, a rotating shaft, a traction assembly, a cable suspension assembly and a spring self-locking mechanism;

The roller assembly includes a roller, a roller shaft and a roller fixing plate; there are two rollers and two roller shafts respectively; two roller fixing plates are arranged in parallel at the front and rear positions, and the two roller fixing plates are respectively arranged on the left and right sides. The roller shafts are connected; the rollers are installed on the roller shafts and can rotate by relying on the roller shafts; the outer side of the roller fixing plate is provided with arc-shaped protrusions;

The rotary support fork is one piece, and the rotary support fork is composed of the shaft center and the fork claw; the shaft center is a cylindrical part with a shaft hole in the center; there are more than 8 shift fork claws, each fork claw The inner end is integrally connected with the shaft center; the outer end of each fork claw is provided with an arc-shaped slot matching the arc-shaped protrusion of the roller fixing plate; each shift fork claw is on the shaft center The two rotating support forks are set in a uniform direction; the two rotating support forks are set in front and rear mirror images, and are located on the outside of the front and rear two roller fixing plates; the two rotating support forks are fixedly connected to the rotating shaft , and can rotate on the axis of rotation;

The traction assembly includes a bracket and a traction plate; the bracket is a U-shaped integral piece composed of two vertical plates and a horizontal plate; the support is fixedly connected with the two ends of the rotating shaft by the upper part of the two vertical plates; the traction plate is As for the plate body set horizontally, one traction connection hole is respectively provided on the left and right sides of the traction plate; the traction plate is fixedly installed on the bottom plate of the support and is located below the bottom plate of the support; the traction plate is vertically connected to the bottom plate of the support;

The cable suspension assembly includes a fixed curved boom, a rotating curved boom, a boom shaft, a cable placement roller and a cable guard; the upper end of the fixed curved boom is fixedly connected to the rear end of the rotating shaft; the lower end of the fixed curved boom is connected to the boom The rear end of the rotating shaft is fixedly connected; the upper end of the rotating curved boom engages with the front end of the rotating shaft; the lower end of the rotating curved boom is rotatably connected with the front end of the rotating shaft of the boom; the cable placement roller is sleeved on the rotating shaft of the boom and can Relying on the boom shaft to rotate; the cable guards are provided with the same two pieces, and the two cable guards are respectively fixed at the front and rear ends of the boom shaft and located inside the swivel boom and the boom shaft;

The spring self-locking mechanism includes a handle and a spring; the handle is movably installed on the front end of the rotating shaft, and the spring is sleeved on the front end of the rotating shaft and arranged in the handle; the handle relies on the elastic force of the spring to rotate the curved boom The upper end of the upper end is locked with the front end of the rotating shaft.

A further solution is: the above-mentioned support rope is a rope with a diameter of 10mm made of high-strength fiber material.

Further scheme also has: above-mentioned infrared range-finding alarm is the infrared range-finding alarm of HB-T001Q3 model.

The utility model has positive effects: (1) The 10kV bypass cable overhead laying street crossing device of the utility model has simple structure, low cost and is easy to popularize. (2) The 10kV bypass cable overhead laying device for crossing the street of the utility model has main components that are easy to disassemble and assemble on site, and is easy to carry. It is suitable for outdoor repair work by the power supply department and has strong applicability. (3) The 10kV bypass cable overhead laying crossing device of the utility model is easy to use, can effectively shorten the erection time of the bypass cable across the street, and improve the repair efficiency. (4) The 10kV bypass cable overhead laying street crossing device of the present utility model can effectively prevent the superhigh vehicles passing through the street from completing the support during the operation process by setting two infrared ranging alarms. Dangerous accidents caused by hanging or pulling the bypass cable across the street during construction, improving the safety of bypass operations in the power supply department.

Description of drawings

Fig. 1 is a structural schematic diagram of the present utility model, and also schematically shows its cooperation relationship with the bypass cable when in use;

Fig. 2 is a schematic structural view of the support assembly in Fig. 1;

Fig. 3 is a schematic structural view of the lead-in bracket on the rod in Fig. 1, and the matching relationship with the support rope is also shown in the figure;

Fig. 4 is the structural representation of the mobile block in Fig. 1;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is a schematic perspective view of the three-dimensional structure of the mobile tackle in Fig. 1 .

The reference signs in the above-mentioned accompanying drawings are as follows:

The first support assembly 1, the base 11, the fixed frame 11-1, the adjustment hand wheel 11-2, the lifting rod 12, the driver 13,

second support assembly 2,

Import bracket 3 on the rod, connecting plate 31, connecting arm 32, hanging arm 33, hanging ring 34,

support rope 4,

Mobile block 5, roller assembly 51, roller 51-1, roller shaft 51-2, roller fixed plate 51-3; rotating support shift fork 52; rotating shaft 53; traction assembly 54, bracket 54-1, traction plate 54-2 ; Cable suspension assembly 55, fixed curved boom 55-1, rotating curved boom 55-2, boom rotating shaft 55-3, cable placement roller 55-4, cable guard plate 55-5; spring self-locking mechanism 56, pull handle 56-1, spring 56-2;

Mobile tackle connects traction rope 6;

Infrared ranging alarm 7;

Bypass cable 8.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

(Example 1)

See Fig. 1, the 10kV bypass cable overhead laying street crossing device of this embodiment is mainly composed of the first supporting assembly 1, the second supporting assembly 2, the guide bracket 3 on the pole, the supporting rope 4, the moving block 5, and the moving block connecting the traction rope 6 and infrared ranging alarm 7 to form.

Referring to FIG. 2 , the first support assembly 1 is mainly composed of a base 11 , a lifting rod 12 and a driver 13 .

The base 11 is mainly composed of a fixed frame 11-1 and an adjustment hand wheel 11-2. The fixed frame 11-1 is composed of 2 support beams and 1 installation beam, and the 2 support beams are arranged in parallel; the two ends of the installation beam are fixedly connected with the middle parts of the 2 support beams; the upper middle part of the installation beam is provided with a mounting flange ; There are 4 adjustment handwheels 11-2, and the 4 adjustment handwheels 11-2 are respectively provided with 1 at the ends of the 2 support beams of the fixed frame 11-1. When in use, the 4 adjustment handwheels 11-2 enables the base 11 to be easily leveled on the street surface.

The lifting rod 12 is fixedly installed on the mounting beam by its lower end through the mounting flange at the upper end of the mounting beam middle part of the fixing frame 11-1; the driver 13 is fixedly installed on the mounting beam of the fixing frame 11-1; the driver 13 and the lifting rod 12 drive Connection; the elevating rod 12 is driven by the driver 13 and can automatically extend upwards or shrink downwards. Driver 13 adopts electro-hydraulic drive mechanism, also can adopt electro-pneumatic drive mechanism.

The structure of the second support assembly 2 is the same as that of the first support assembly 1, and when in use, the second support assembly 2 and the first support assembly 1 are separately arranged on both sides of the street.

Referring to FIG. 3 , the lead-in bracket 3 on the rod is mainly composed of a connecting plate 31 , a connecting arm 32 , a hanging arm 33 and a hanging ring 34 . The rear end of connecting arm 32 is fixedly connected with the upper end of connecting plate 31; the front end of connecting arm 32 is fixedly connected with the upper middle part of hanging arm 33 by connecting bolt; Circular member, hanging ring 34 is fixedly arranged in the groove body of hanging arm 33; The guide bracket 3 on the rod is fixedly installed on the upper end of the elevating rod 12 through the connecting plate 31, and the connecting arm 32 protrudes forward. The guide bracket 3 is used to support and hang the support rope 4 on the rod.

The same two on-rod guide brackets 3 are provided, and one of each of the two on-rod guide brackets 3 is provided on the first support assembly 1 and the second support assembly 2 .

The support rope 4 is made of high-strength fiber, which has good tensile strength and is durable, wear-resistant, simple and lightweight. In this embodiment, the diameter of the support rope 4 is preferably 10mm. The support rope 4 passes the link 34 of the import support 3 on the 2 bars during use, and is used to support the mobile tackle 5 and the bypass cable 8 placed on the mobile tackle 5 to move on the support rope 4 together.

4 to 6, the mobile block 5 is mainly composed of a roller assembly 51, a rotating support fork 52, a rotating shaft 53, a traction assembly 54, a cable suspension assembly 55 and a spring self-locking mechanism 56.

The roller assembly 51 is mainly composed of a roller 51-1, a roller rotating shaft 51-2 and a roller fixing plate 51-3; the roller 51-1 is installed on the roller rotating shaft 51-2 and can rotate by relying on the roller rotating shaft 51-2; the roller 51-1 and the roller rotating shaft 51-2 are respectively provided with 2; the roller fixing plate 51-3 is divided into two parallel positions, and the 2 roller fixing plates 51-3 are respectively provided with 1 roller rotating shaft 51-3 on the left and right sides. 2 are connected, so that the two rollers 51-1 are located between the two roller fixing plates 51-3 and are respectively arranged on the left and right sides; the outer side of the roller fixing plates 51-3 is provided with arc-shaped protrusions.

The rotary support shift fork 52 is one piece, and the rotary support shift fork 52 is composed of a shaft center and a shift fork claw; the shaft center is a cylindrical part with a shaft hole in the center; the shift fork claw is provided with 8 or more , each fork claw is connected integrally with the shaft center by its inner end; each fork claw is provided with an arc-shaped slot matching the arc-shaped protrusion of the roller fixing plate 51-3 on the outer end of each fork claw; each dial The fork claws are evenly arranged in the circumferential direction of the shaft center.

The rotating support shifting fork 52 is provided with identical 2, and these 2 rotating supporting shifting forks 52 points front and back mirror image settings, and are positioned at the outer side of 2 front and rear roller fixing plates 51-3; 53 is fixedly connected, and can rotate by relying on the rotating shaft 53;

The traction assembly 54 is mainly composed of a bracket 54-1 and a traction plate 54-2; the bracket 54-1 is U-shaped as a whole, and the bracket 54-1 is composed of two vertical plates and a horizontal plate; the bracket 54-1 is composed of two The upper part of the vertical plate is fixed on the two ends of the rotating shaft 53; the traction plate 54-2 is a plate body part arranged horizontally, and the left and right sides of the traction plate 54-2 are respectively provided with a traction connecting hole; the traction plate 54- 2. Fixedly installed on the bottom plate of the bracket 54-1 and located below the bottom plate of the bracket 54-1; the traction plate 54-2 is vertically connected with the bottom plate of the bracket 54-1.

The cable suspension assembly 55 mainly consists of a fixed curved boom 55-1, a rotary curved boom 55-2, a boom rotating shaft 55-3, a cable placement roller 55-4 and a cable guard 55-5. The upper end of the fixed curved boom 55-1 is fixedly connected with the rear end of the rotating shaft 53; the lower end of the fixed curved boom 55-1 is fixedly connected with the rear end of the boom rotating shaft 55-3; the upper end of the rotary curved boom 55-2 A U-shaped occlusal opening is provided, and the U-shaped occlusal opening of the revolving curved boom 55-2 engages with the front end of the rotating shaft 53; the lower end of the revolving curved boom 55-2 is rotatably connected with the front end of the boom rotating shaft 55-3 ; The cable placement roller 55-4 is socketed on the boom shaft 55-3 and can rotate by relying on the boom shaft 55-3; the cable guard 55-5 is provided with the same two pieces, and the two cable guards 55-5 They are respectively fixedly arranged at the front and rear ends of the boom rotating shaft 55-3 and are located at the inner side of the swivel curved boom 55-2 and the boom rotating shaft 55-3.

Spring self-locking mechanism 56 is made up of pull handle 56-1 and spring 56-2; Pull handle 56-1 is a hollow cylinder part, and pull handle 56-1 is movably installed on the front end of rotating shaft 53, and spring 56-2 Socketed on the front end of the rotating shaft 53 and set in the pull handle 56-1; when the U-shaped occlusal mouth of the rotating curved boom 55-2 engages with the front end of the rotating shaft 53, the pull handle 56-1 relies on the spring 56 The elastic force of -2 locks the upper end of the swivel boom 55-2; The U-shaped occlusal opening of -2 is separated from the rotating shaft 53, and the rotating curved boom 55-2 is rotated downward, so that the bypass cable 8 can be placed on the cable placement roller 55-4 conveniently, and then the opposite action is used to make the The upper end of the swivel boom 55 - 2 is fixed on the rotating shaft 53 .

Still see Fig. 1, the quantity of moving block 5 is set according to need; In the present embodiment, moving block 5 is provided with 1 every 2 meters on support rope 4. Each mobile tackle 5 utilizes the traction connection holes on the left and right sides of the traction plate 54-2 of its traction assembly 54 to be connected to each other by the mobile tackle to connect the traction rope 6; Operator control.

The mobile tackle 5 is used to support the bypass cable 8 to cross the street and suspend the bypass cable 8 during construction.

Infrared ranging alarm 7 is provided with 2, and these 2 infrared ranging alarms 7 are respectively fixedly installed on the top of the elevating rod 12 of the first supporting assembly 1 and the top of the elevating rod of the second supporting assembly 2, The installation direction is opposite; during use, the infrared distance measuring alarm 7 is used to monitor the super-high vehicle crossing the street, preventing the super-high vehicle from hanging up the street-crossing bypass cable 8 under construction when the super-high vehicle is not paying attention in the driving process. Pull away to cause danger; One of the 2 infrared range-finding alarms 7 is used to monitor the vehicle ahead, and the other is used to monitor the rear vehicle; when the infrared range-finding alarm 7 detects that the height of the super-high vehicle reaches its When the height of oneself is in and the warning distance is set, the infrared ranging alarm 7 will give an alarm immediately, reminding the staff to do corresponding processing. In this embodiment, the infrared distance measuring alarm 7 preferably adopts the infrared distance measuring alarm of the HB-T001Q3 model.

The bypass cable overhead laying street crossing device of this embodiment, the use process in its operation is briefly described as follows:

The operator first separates the first support assembly 1 and the second support assembly 2 on both sides of the street where the cross-street operation is required, and levels and positions them; the two poles are introduced into the bracket 3 and the two infrared distance measuring alarms 7 are fixed and installed respectively. On the upper end of the elevating rod 12 of the first support assembly 1 and the upper end of the elevating rod of the second support assembly 2; the right end of the support rope 4 and the right end of the mobile pulley connected to the traction rope 6 are passed through the two bars and introduced into the support 3 respectively. Continue to stretch out to the right behind the hanging ring 34; Start the driver 13 of the first support assembly 1 and the driver of the second support assembly 2, drive the lifting rod to rise to a predetermined height; Place the mobile tackle 5 on the support rope 4; Will need to cross the street The bypass cable 8 is placed on the cable placement roller 55-4 of each mobile block 5; then the two ends of the support rope 4 are fixed and reliably connected to the ground; then, the operator pulls the mobile block to the right by manpower or machinery to connect the traction rope 6 , to drive each moving block 5 to roll from left to right on the support rope 4, when the moving block 5 moves to the bar and guides the bracket 3, because the rotating support shift fork 52 of the moving block 5 is structurally rotated around the rotating shaft 53 , when the moving trolley 5 moves forward, when its rotary support fork 52 is in contact with the hanging ring 34 of the guide bracket 3 on the rod, the rotary support switch 52 rotates clockwise, thereby avoiding the guide ring 34 of the guide bracket 3 on the bar. The ring 34 continues to move to the right, so that the bypass cable 8 carried by the mobile tackle 5 is suspended to cross the street, and finally the bypass function can be performed; during the operation, two infrared distance measuring alarms 7 monitor the front and rear super-high vehicles respectively. Recycle the unit in reverse order after work is complete.

The above embodiments are descriptions of specific implementations of the present utility model, rather than limitations of the present utility model. Those skilled in the art can also make various transformations and changes without departing from the spirit and scope of the present utility model. Changes to obtain corresponding equivalent technical solutions, so all equivalent technical solutions should be included in the patent protection scope of the present utility model.

Claims (6)

1. A 10kV bypass cable overhead laying street crossing device, characterized in that it includes the first support assembly (1), the second support assembly (2), the lead-in bracket (3) on the pole, the support rope (4), and the moving block (5), the mobile block is connected to the traction rope (6) and the infrared distance measuring alarm (7); The first supporting assembly (1) includes a base (11), a lifting rod (12) and a driver (13); the lifting rod (12) and the driver (13) are arranged on the base (11); the driver (13) and Lifting rod (12) transmission connection; The structure of the second support assembly (2) is the same as that of the first support assembly (1); when in use, the second support assembly (2) and the first support assembly (1) are separately arranged on both sides of the street; There are two same guide brackets (3) on the rod, and the two guide brackets (3) are on the upper end of the lifting rod (12) of the first support assembly (1) and the lifting of the second support assembly (2). Each of the upper ends of the rods is respectively provided with one; When the support rope (4) is in use, it passes through the guide brackets (3) on the two poles and is supported by the guide brackets (3) on the two poles; the two ends of the support rope (4) are fixed and reliable connected to the ground; The mobile blocks (5) are evenly spaced on the support rope (4); each mobile block (5) is connected to each other through the mobile block to connect the traction rope (6) and can be pulled by the support rope under the traction of the mobile block to connect the traction rope (6). (4) Move up and down; when in use, each moving block (5) is used to support the bypass cables that need to cross the street; There are 2 infrared ranging alarms (7); the 2 infrared ranging alarms (7) are on the top of the lifting rod (12) of the first support assembly (1) and the lifting of the second support assembly (2) One is respectively fixedly installed on the top of the bar, and the installation directions of the two infrared distance measuring alarms (7) are opposite. 2. The 10kV bypass cable overhead laying street crossing device according to claim 1, characterized in that: the base (11) of the first support assembly (1) includes a fixing frame (11-1) and an adjustment hand wheel ( 11-2); the fixed frame (11-1) is composed of 2 support beams and 1 installation beam; the 2 support beams are arranged in parallel; the installation beam is fixedly connected with the middle part of the 2 support beams by its two ends; the installation beam The upper end of the middle part is provided with a mounting flange; there are 4 adjustment handwheels (11-2), and the 4 adjustment handwheels (11-2) are respectively located at the ends of the 2 support beams of the fixed frame (11-1). Set 1; the lower end of the lifting rod (12) is fixed on the installation beam through the installation flange at the upper end of the middle part of the installation beam of the fixed frame (11-1); the driver (13) is fixedly installed on the fixed frame (11-1) -1) on the mounting beam; the elevating rod (12) can automatically extend upward or shrink downward under the drive of the driver (13); the driver (13) is an electro-hydraulic drive mechanism or an electro-pneumatic drive mechanism. 3. The 10kV bypass cable aerial laying device for crossing the street according to claim 1, characterized in that: the guide bracket (3) on the pole includes a connecting plate (31), a connecting arm (32), and a hanging arm (33) and the hanging ring (34); the rear end of the connecting arm (32) is fixedly connected with the upper end of the connecting plate (31); the front end of the connecting arm (32) is fixedly connected with the middle part of the upper end of the connecting arm (33); the connecting arm (33) It is a groove body part with the opening downward; the hanging ring (34) is a semicircular ring, and the hanging ring (34) is fixedly arranged in the groove body of the hanging arm (33); the hanging ring (34) is provided with 3 to 6 pieces, each The hanging ring (34) is evenly arranged left and right in the groove of the hanging arm (33); stick out. 4. The 10kV bypass cable overhead laying street crossing device according to claim 1, characterized in that: the moving block (5) includes a roller assembly (51), a rotating support fork (52), a rotating shaft (53) , traction assembly (54), cable suspension assembly (55) and spring self-locking mechanism (56); The roller assembly (51) includes a roller (51-1), a roller shaft (51-2) and a roller fixing plate (51-3); the roller (51-1) and the roller shaft (51-2) are respectively provided with two ; Roller fixed plates (51-3) are divided into 2 pieces in parallel at the front and rear positions, and the 2 roller fixed plates (51-3) are connected by 1 roller shaft (51-2) respectively located on the left and right sides; the rollers ( 51-1) It is installed on the roller shaft (51-2) and can rotate by relying on the roller shaft (51-2); the outer side of the roller fixing plate (51-3) is provided with an arc-shaped protrusion; The rotary support shift fork (52) is one piece, and the rotary support shift fork (52) is composed of a shaft center and a shift fork claw; the shaft center is a cylindrical part with a shaft hole in the center; Above, each fork claw is integrally connected with the shaft center by its inner end; the outer end of each fork claw is provided with an arc-shaped slot matching the arc-shaped protrusion of the roller fixing plate (51-3) ;The fork claws are evenly arranged in the circumferential direction of the shaft center; the same two rotary support forks (52) are provided, and the two rotary support forks (52) are set in front and rear mirror images, and are located on two front and rear rollers The outer side of the fixed plate (51-3); the two rotating support forks (52) are fixedly connected to the rotating shaft (53), and can rotate by relying on the rotating shaft (53); The traction assembly (54) includes a bracket (54-1) and a traction plate (54-2); the bracket (54-1) is a U-shaped integral piece composed of 2 vertical plates and a horizontal plate; the bracket (54 -1) The upper parts of the two vertical plates are fixedly connected to the two ends of the rotating shaft (53); Each is provided with a traction connection hole; the traction plate (54-2) is fixedly installed on the bottom plate of the bracket (54-1) and is located below the bottom plate of the bracket (54-1); the traction plate (54-2) and the bracket ( 54-1) the bottom plates are vertically connected; The cable suspension assembly (55) includes a fixed curved boom (55-1), a rotating curved boom (55-2), a boom shaft (55-3), a cable placement roller (55-4) and a cable guard (55 -5); the upper end of the fixed curved boom (55-1) is fixedly connected to the rear end of the rotating shaft (53); the lower end of the fixed curved boom (55-1) is connected to the rear end of the boom rotating shaft (55-3) Fixedly connected; the upper end of the swivel curved boom (55-2) is engaged with the front end of the rotary shaft (53); the lower end of the swivel curved boom (55-2) is rotatably connected to the front end of the boom shaft (55-3) connection; the cable placement roller (55-4) is sleeved on the boom shaft (55-3) and can rotate depending on the boom shaft (55-3); the cable guard (55-5) is provided with the same two pieces, The two cable guards (55-5) are respectively fixedly arranged at the front and rear ends of the boom shaft (55-3) and are located on the inside of the swivel boom (55-2) and the boom shaft (55-3); Spring self-locking mechanism (56) comprises pull handle (56-1) and spring (56-2); Pull handle (56-1) is movably installed in the front end of rotating shaft (53), and spring (56-2) sets Connected to the front end of the rotating shaft (53) and set in the handle (56-1); the handle (56-1) will rotate the crank arm (55-2) by the elastic force of the spring (56-2). The upper end and the front end of the rotating shaft (53) are locked. 5. The 10kV bypass cable overhead laying street crossing device according to claim 1, characterized in that: the support rope (4) is a rope made of high-strength fiber material with a diameter of 10mm. 6. The 10kV bypass cable overhead laying street crossing device according to claim 1, characterized in that: the infrared distance measuring alarm (7) is an infrared distance measuring alarm of HB-T001Q3 type.